Home / 31,681,177.38-43,739,770.78-21,775,117.14

Finding the Fourth Proportional to 31,681,177.38, 43,739,770.78 and 21,775,117.14

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Solution

The fourth proportional to 31,681,177.38, 43,739,770.78 and 21,775,117.14 is: 30,063,233.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,681,177.38 : 43,739,770.78 = 21,775,117.14 : x
  2. Step 2: Convert to fraction form
    31,681,177.38/43,739,770.78 = 21,775,117.14/x
  3. Step 3: Cross multiply
    31,681,177.38x = 43,739,770.78 × 21,775,117.14
  4. Step 4: Simplify right side
    31,681,177.38x = 952,438,632,411,249.25
  5. Step 5: Solve for x
    x = 952,438,632,411,249.25/31,681,177.38
  6. Step 6: Final answer
    x = 30,063,233.48

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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.