Home / 513,096,665.80-769,637,781.60-124,920,349.60

Finding the Fourth Proportional to 513,096,665.80, 769,637,781.60 and 124,920,349.60

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Solution

The fourth proportional to 513,096,665.80, 769,637,781.60 and 124,920,349.60 is: 187,378,767.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,096,665.80 : 769,637,781.60 = 124,920,349.60 : x
  2. Step 2: Convert to fraction form
    513,096,665.80/769,637,781.60 = 124,920,349.60/x
  3. Step 3: Cross multiply
    513,096,665.80x = 769,637,781.60 × 124,920,349.60
  4. Step 4: Simplify right side
    513,096,665.80x = 96,143,420,742,840,448
  5. Step 5: Solve for x
    x = 96,143,420,742,840,448/513,096,665.80
  6. Step 6: Final answer
    x = 187,378,767.30

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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.