Home / 87,442,005.20-131,163,007.80-61,365,966.80

Finding the Fourth Proportional to 87,442,005.20, 131,163,007.80 and 61,365,966.80

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Solution

The fourth proportional to 87,442,005.20, 131,163,007.80 and 61,365,966.80 is: 92,048,950.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,442,005.20 : 131,163,007.80 = 61,365,966.80 : x
  2. Step 2: Convert to fraction form
    87,442,005.20/131,163,007.80 = 61,365,966.80/x
  3. Step 3: Cross multiply
    87,442,005.20x = 131,163,007.80 × 61,365,966.80
  4. Step 4: Simplify right side
    87,442,005.20x = 8,048,944,782,042,940
  5. Step 5: Solve for x
    x = 8,048,944,782,042,940/87,442,005.20
  6. Step 6: Final answer
    x = 92,048,950.20

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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.