Home / 1,819,321,320.20-2,510,663,425.83-983,945,890.76

Finding the Fourth Proportional to 1,819,321,320.20, 2,510,663,425.83 and 983,945,890.76

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Solution

The fourth proportional to 1,819,321,320.20, 2,510,663,425.83 and 983,945,890.76 is: 1,357,845,331.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,819,321,320.20 : 2,510,663,425.83 = 983,945,890.76 : x
  2. Step 2: Convert to fraction form
    1,819,321,320.20/2,510,663,425.83 = 983,945,890.76/x
  3. Step 3: Cross multiply
    1,819,321,320.20x = 2,510,663,425.83 × 983,945,890.76
  4. Step 4: Simplify right side
    1,819,321,320.20x = 2,470,356,960,914,299,392
  5. Step 5: Solve for x
    x = 2,470,356,960,914,299,392/1,819,321,320.20
  6. Step 6: Final answer
    x = 1,357,845,331.38

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Half scale
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Double scale
Find fourth proportional to 1,819,321,321.20, 2,510,663,427.21 and 983,945,891.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.