Home / 141,931,723.20-212,897,584.80-77,434,468.80

Finding the Fourth Proportional to 141,931,723.20, 212,897,584.80 and 77,434,468.80

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Solution

The fourth proportional to 141,931,723.20, 212,897,584.80 and 77,434,468.80 is: 116,151,703.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,931,723.20 : 212,897,584.80 = 77,434,468.80 : x
  2. Step 2: Convert to fraction form
    141,931,723.20/212,897,584.80 = 77,434,468.80/x
  3. Step 3: Cross multiply
    141,931,723.20x = 212,897,584.80 × 77,434,468.80
  4. Step 4: Simplify right side
    141,931,723.20x = 16,485,611,387,790,954
  5. Step 5: Solve for x
    x = 16,485,611,387,790,954/141,931,723.20
  6. Step 6: Final answer
    x = 116,151,703.20

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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.