Home / 141,429,373.12-195,171,120.84-78,704,397.92

Finding the Fourth Proportional to 141,429,373.12, 195,171,120.84 and 78,704,397.92

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Solution

The fourth proportional to 141,429,373.12, 195,171,120.84 and 78,704,397.92 is: 108,611,282.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,429,373.12 : 195,171,120.84 = 78,704,397.92 : x
  2. Step 2: Convert to fraction form
    141,429,373.12/195,171,120.84 = 78,704,397.92/x
  3. Step 3: Cross multiply
    141,429,373.12x = 195,171,120.84 × 78,704,397.92
  4. Step 4: Simplify right side
    141,429,373.12x = 15,360,825,557,083,766
  5. Step 5: Solve for x
    x = 15,360,825,557,083,766/141,429,373.12
  6. Step 6: Final answer
    x = 108,611,282.21

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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.