Home / 90,605,419.82-125,031,960.02-55,382,200.79

Finding the Fourth Proportional to 90,605,419.82, 125,031,960.02 and 55,382,200.79

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Solution

The fourth proportional to 90,605,419.82, 125,031,960.02 and 55,382,200.79 is: 76,425,285.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,605,419.82 : 125,031,960.02 = 55,382,200.79 : x
  2. Step 2: Convert to fraction form
    90,605,419.82/125,031,960.02 = 55,382,200.79/x
  3. Step 3: Cross multiply
    90,605,419.82x = 125,031,960.02 × 55,382,200.79
  4. Step 4: Simplify right side
    90,605,419.82x = 6,924,545,114,369,732
  5. Step 5: Solve for x
    x = 6,924,545,114,369,732/90,605,419.82
  6. Step 6: Final answer
    x = 76,425,285.91

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1.5x scale

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.