Home / 129,681,993.42-194,211,294.36-74,181,561.90

Finding the Fourth Proportional to 129,681,993.42, 194,211,294.36 and 74,181,561.90

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Solution

The fourth proportional to 129,681,993.42, 194,211,294.36 and 74,181,561.90 is: 111,094,044.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,681,993.42 : 194,211,294.36 = 74,181,561.90 : x
  2. Step 2: Convert to fraction form
    129,681,993.42/194,211,294.36 = 74,181,561.90/x
  3. Step 3: Cross multiply
    129,681,993.42x = 194,211,294.36 × 74,181,561.90
  4. Step 4: Simplify right side
    129,681,993.42x = 14,406,897,154,245,464
  5. Step 5: Solve for x
    x = 14,406,897,154,245,464/129,681,993.42
  6. Step 6: Final answer
    x = 111,094,044.55

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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.