Home / 141,148,909.20-211,439,928.60-80,493,776.40

Finding the Fourth Proportional to 141,148,909.20, 211,439,928.60 and 80,493,776.40

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Solution

The fourth proportional to 141,148,909.20, 211,439,928.60 and 80,493,776.40 is: 120,579,028.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,148,909.20 : 211,439,928.60 = 80,493,776.40 : x
  2. Step 2: Convert to fraction form
    141,148,909.20/211,439,928.60 = 80,493,776.40/x
  3. Step 3: Cross multiply
    141,148,909.20x = 211,439,928.60 × 80,493,776.40
  4. Step 4: Simplify right side
    141,148,909.20x = 17,019,598,334,760,366
  5. Step 5: Solve for x
    x = 17,019,598,334,760,366/141,148,909.20
  6. Step 6: Final answer
    x = 120,579,028.43

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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.