Home / 53,445,642.30-80,168,463.45-45,792,891.90

Finding the Fourth Proportional to 53,445,642.30, 80,168,463.45 and 45,792,891.90

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Solution

The fourth proportional to 53,445,642.30, 80,168,463.45 and 45,792,891.90 is: 68,689,337.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,445,642.30 : 80,168,463.45 = 45,792,891.90 : x
  2. Step 2: Convert to fraction form
    53,445,642.30/80,168,463.45 = 45,792,891.90/x
  3. Step 3: Cross multiply
    53,445,642.30x = 80,168,463.45 × 45,792,891.90
  4. Step 4: Simplify right side
    53,445,642.30x = 3,671,145,780,554,951
  5. Step 5: Solve for x
    x = 3,671,145,780,554,951/53,445,642.30
  6. Step 6: Final answer
    x = 68,689,337.85

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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.