Home / 129,961,316-194,900,792.49-42,502,622.78

Finding the Fourth Proportional to 129,961,316, 194,900,792.49 and 42,502,622.78

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Solution

The fourth proportional to 129,961,316, 194,900,792.49 and 42,502,622.78 is: 63,740,466.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,961,316 : 194,900,792.49 = 42,502,622.78 : x
  2. Step 2: Convert to fraction form
    129,961,316/194,900,792.49 = 42,502,622.78/x
  3. Step 3: Cross multiply
    129,961,316x = 194,900,792.49 × 42,502,622.78
  4. Step 4: Simplify right side
    129,961,316x = 8,283,794,862,725,528
  5. Step 5: Solve for x
    x = 8,283,794,862,725,528/129,961,316
  6. Step 6: Final answer
    x = 63,740,466.15

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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.