Home / 99,798,921.46-137,722,991.28-55,747,777

Finding the Fourth Proportional to 99,798,921.46, 137,722,991.28 and 55,747,777

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Solution

The fourth proportional to 99,798,921.46, 137,722,991.28 and 55,747,777 is: 76,932,200.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,798,921.46 : 137,722,991.28 = 55,747,777 : x
  2. Step 2: Convert to fraction form
    99,798,921.46/137,722,991.28 = 55,747,777/x
  3. Step 3: Cross multiply
    99,798,921.46x = 137,722,991.28 × 55,747,777
  4. Step 4: Simplify right side
    99,798,921.46x = 7,677,750,605,650,385
  5. Step 5: Solve for x
    x = 7,677,750,605,650,385/99,798,921.46
  6. Step 6: Final answer
    x = 76,932,200.20

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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.