Home / 1,581,132,427.92-2,181,962,957.35-876,329,911.69

Finding the Fourth Proportional to 1,581,132,427.92, 2,181,962,957.35 and 876,329,911.69

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Solution

The fourth proportional to 1,581,132,427.92, 2,181,962,957.35 and 876,329,911.69 is: 1,209,335,392.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581,132,427.92 : 2,181,962,957.35 = 876,329,911.69 : x
  2. Step 2: Convert to fraction form
    1,581,132,427.92/2,181,962,957.35 = 876,329,911.69/x
  3. Step 3: Cross multiply
    1,581,132,427.92x = 2,181,962,957.35 × 876,329,911.69
  4. Step 4: Simplify right side
    1,581,132,427.92x = 1,912,119,405,725,376,768
  5. Step 5: Solve for x
    x = 1,912,119,405,725,376,768/1,581,132,427.92
  6. Step 6: Final answer
    x = 1,209,335,392.76

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Double scale
Find fourth proportional to 1,581,132,428.92, 2,181,962,958.73 and 876,329,912.69
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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.