Home / 80,811,781.92-111,520,254.79-43,642,058.62

Finding the Fourth Proportional to 80,811,781.92, 111,520,254.79 and 43,642,058.62

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Solution

The fourth proportional to 80,811,781.92, 111,520,254.79 and 43,642,058.62 is: 60,226,038.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,811,781.92 : 111,520,254.79 = 43,642,058.62 : x
  2. Step 2: Convert to fraction form
    80,811,781.92/111,520,254.79 = 43,642,058.62/x
  3. Step 3: Cross multiply
    80,811,781.92x = 111,520,254.79 × 43,642,058.62
  4. Step 4: Simplify right side
    80,811,781.92x = 4,866,973,496,862,516
  5. Step 5: Solve for x
    x = 4,866,973,496,862,516/80,811,781.92
  6. Step 6: Final answer
    x = 60,226,038.60

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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.