Home / 1,236,575,975.49-1,855,783,491.65-499,652,287.70

Finding the Fourth Proportional to 1,236,575,975.49, 1,855,783,491.65 and 499,652,287.70

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Solution

The fourth proportional to 1,236,575,975.49, 1,855,783,491.65 and 499,652,287.70 is: 749,849,977.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,236,575,975.49 : 1,855,783,491.65 = 499,652,287.70 : x
  2. Step 2: Convert to fraction form
    1,236,575,975.49/1,855,783,491.65 = 499,652,287.70/x
  3. Step 3: Cross multiply
    1,236,575,975.49x = 1,855,783,491.65 × 499,652,287.70
  4. Step 4: Simplify right side
    1,236,575,975.49x = 927,246,467,067,039,104
  5. Step 5: Solve for x
    x = 927,246,467,067,039,104/1,236,575,975.49
  6. Step 6: Final answer
    x = 749,849,977.23

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Half scale
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Double scale
Find fourth proportional to 1,236,575,976.49, 1,855,783,493.15 and 499,652,288.70
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.