Home / 81,465,489.90-122,339,952.45-43,201,737.90

Finding the Fourth Proportional to 81,465,489.90, 122,339,952.45 and 43,201,737.90

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Solution

The fourth proportional to 81,465,489.90, 122,339,952.45 and 43,201,737.90 is: 64,877,760.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,465,489.90 : 122,339,952.45 = 43,201,737.90 : x
  2. Step 2: Convert to fraction form
    81,465,489.90/122,339,952.45 = 43,201,737.90/x
  3. Step 3: Cross multiply
    81,465,489.90x = 122,339,952.45 × 43,201,737.90
  4. Step 4: Simplify right side
    81,465,489.90x = 5,285,298,560,443,363
  5. Step 5: Solve for x
    x = 5,285,298,560,443,363/81,465,489.90
  6. Step 6: Final answer
    x = 64,877,760.72

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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.