Home / 57,420,012.80-86,177,020.80-56,972,115.20

Finding the Fourth Proportional to 57,420,012.80, 86,177,020.80 and 56,972,115.20

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Solution

The fourth proportional to 57,420,012.80, 86,177,020.80 and 56,972,115.20 is: 85,504,807.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,420,012.80 : 86,177,020.80 = 56,972,115.20 : x
  2. Step 2: Convert to fraction form
    57,420,012.80/86,177,020.80 = 56,972,115.20/x
  3. Step 3: Cross multiply
    57,420,012.80x = 86,177,020.80 × 56,972,115.20
  4. Step 4: Simplify right side
    57,420,012.80x = 4,909,687,156,610,396
  5. Step 5: Solve for x
    x = 4,909,687,156,610,396/57,420,012.80
  6. Step 6: Final answer
    x = 85,504,807.77

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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.