Home / 72,720,003.80-109,080,005.70-34,456,251.80

Finding the Fourth Proportional to 72,720,003.80, 109,080,005.70 and 34,456,251.80

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Solution

The fourth proportional to 72,720,003.80, 109,080,005.70 and 34,456,251.80 is: 51,684,377.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,720,003.80 : 109,080,005.70 = 34,456,251.80 : x
  2. Step 2: Convert to fraction form
    72,720,003.80/109,080,005.70 = 34,456,251.80/x
  3. Step 3: Cross multiply
    72,720,003.80x = 109,080,005.70 × 34,456,251.80
  4. Step 4: Simplify right side
    72,720,003.80x = 3,758,488,142,744,635
  5. Step 5: Solve for x
    x = 3,758,488,142,744,635/72,720,003.80
  6. Step 6: Final answer
    x = 51,684,377.70

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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.