Home / 518,635,187.10-715,708,136.88-283,683,792.42

Finding the Fourth Proportional to 518,635,187.10, 715,708,136.88 and 283,683,792.42

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Solution

The fourth proportional to 518,635,187.10, 715,708,136.88 and 283,683,792.42 is: 391,479,027.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,635,187.10 : 715,708,136.88 = 283,683,792.42 : x
  2. Step 2: Convert to fraction form
    518,635,187.10/715,708,136.88 = 283,683,792.42/x
  3. Step 3: Cross multiply
    518,635,187.10x = 715,708,136.88 × 283,683,792.42
  4. Step 4: Simplify right side
    518,635,187.10x = 203,034,798,535,970,880
  5. Step 5: Solve for x
    x = 203,034,798,535,970,880/518,635,187.10
  6. Step 6: Final answer
    x = 391,479,027.24

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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.