Home / 132,859,397.20-199,289,095.80-72,393,221.20

Finding the Fourth Proportional to 132,859,397.20, 199,289,095.80 and 72,393,221.20

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Solution

The fourth proportional to 132,859,397.20, 199,289,095.80 and 72,393,221.20 is: 108,589,831.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,859,397.20 : 199,289,095.80 = 72,393,221.20 : x
  2. Step 2: Convert to fraction form
    132,859,397.20/199,289,095.80 = 72,393,221.20/x
  3. Step 3: Cross multiply
    132,859,397.20x = 199,289,095.80 × 72,393,221.20
  4. Step 4: Simplify right side
    132,859,397.20x = 14,427,179,594,997,392
  5. Step 5: Solve for x
    x = 14,427,179,594,997,392/132,859,397.20
  6. Step 6: Final answer
    x = 108,589,831.80

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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.