Home / 141,319,992.80-211,979,989.20-80,853,816.80

Finding the Fourth Proportional to 141,319,992.80, 211,979,989.20 and 80,853,816.80

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Solution

The fourth proportional to 141,319,992.80, 211,979,989.20 and 80,853,816.80 is: 121,280,725.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,319,992.80 : 211,979,989.20 = 80,853,816.80 : x
  2. Step 2: Convert to fraction form
    141,319,992.80/211,979,989.20 = 80,853,816.80/x
  3. Step 3: Cross multiply
    141,319,992.80x = 211,979,989.20 × 80,853,816.80
  4. Step 4: Simplify right side
    141,319,992.80x = 17,139,391,212,042,776
  5. Step 5: Solve for x
    x = 17,139,391,212,042,776/141,319,992.80
  6. Step 6: Final answer
    x = 121,280,725.20

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Similar ratio
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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.