Home / 80,931,387.11-111,678,562.64-45,647,247.83

Finding the Fourth Proportional to 80,931,387.11, 111,678,562.64 and 45,647,247.83

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Solution

The fourth proportional to 80,931,387.11, 111,678,562.64 and 45,647,247.83 is: 62,989,393.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,931,387.11 : 111,678,562.64 = 45,647,247.83 : x
  2. Step 2: Convert to fraction form
    80,931,387.11/111,678,562.64 = 45,647,247.83/x
  3. Step 3: Cross multiply
    80,931,387.11x = 111,678,562.64 × 45,647,247.83
  4. Step 4: Simplify right side
    80,931,387.11x = 5,097,819,025,898,023
  5. Step 5: Solve for x
    x = 5,097,819,025,898,023/80,931,387.11
  6. Step 6: Final answer
    x = 62,989,393.95

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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.