Home / 80,375,744.02-120,411,490.65-47,487,961.18

Finding the Fourth Proportional to 80,375,744.02, 120,411,490.65 and 47,487,961.18

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Solution

The fourth proportional to 80,375,744.02, 120,411,490.65 and 47,487,961.18 is: 71,142,062.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,375,744.02 : 120,411,490.65 = 47,487,961.18 : x
  2. Step 2: Convert to fraction form
    80,375,744.02/120,411,490.65 = 47,487,961.18/x
  3. Step 3: Cross multiply
    80,375,744.02x = 120,411,490.65 × 47,487,961.18
  4. Step 4: Simplify right side
    80,375,744.02x = 5,718,096,193,613,133
  5. Step 5: Solve for x
    x = 5,718,096,193,613,133/80,375,744.02
  6. Step 6: Final answer
    x = 71,142,062.36

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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.