Home / 77,376,061-106,778,962.02-42,568,002.28

Finding the Fourth Proportional to 77,376,061, 106,778,962.02 and 42,568,002.28

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Solution

The fourth proportional to 77,376,061, 106,778,962.02 and 42,568,002.28 is: 58,743,841.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,376,061 : 106,778,962.02 = 42,568,002.28 : x
  2. Step 2: Convert to fraction form
    77,376,061/106,778,962.02 = 42,568,002.28/x
  3. Step 3: Cross multiply
    77,376,061x = 106,778,962.02 × 42,568,002.28
  4. Step 4: Simplify right side
    77,376,061x = 4,545,367,098,723,393
  5. Step 5: Solve for x
    x = 4,545,367,098,723,393/77,376,061
  6. Step 6: Final answer
    x = 58,743,841.96

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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.