Home / 131,782,067.28-181,858,938.12-72,243,258.48

Finding the Fourth Proportional to 131,782,067.28, 181,858,938.12 and 72,243,258.48

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Solution

The fourth proportional to 131,782,067.28, 181,858,938.12 and 72,243,258.48 is: 99,695,524.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,782,067.28 : 181,858,938.12 = 72,243,258.48 : x
  2. Step 2: Convert to fraction form
    131,782,067.28/181,858,938.12 = 72,243,258.48/x
  3. Step 3: Cross multiply
    131,782,067.28x = 181,858,938.12 × 72,243,258.48
  4. Step 4: Simplify right side
    131,782,067.28x = 13,138,082,273,501,486
  5. Step 5: Solve for x
    x = 13,138,082,273,501,486/131,782,067.28
  6. Step 6: Final answer
    x = 99,695,524.17

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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.