Home / 487,205,136.46-730,515,857.31-155,068,680.91

Finding the Fourth Proportional to 487,205,136.46, 730,515,857.31 and 155,068,680.91

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Solution

The fourth proportional to 487,205,136.46, 730,515,857.31 and 155,068,680.91 is: 232,510,131.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,205,136.46 : 730,515,857.31 = 155,068,680.91 : x
  2. Step 2: Convert to fraction form
    487,205,136.46/730,515,857.31 = 155,068,680.91/x
  3. Step 3: Cross multiply
    487,205,136.46x = 730,515,857.31 × 155,068,680.91
  4. Step 4: Simplify right side
    487,205,136.46x = 113,280,130,376,899,472
  5. Step 5: Solve for x
    x = 113,280,130,376,899,472/487,205,136.46
  6. Step 6: Final answer
    x = 232,510,131.56

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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.