Home / 141,319,620.80-211,979,431.20-76,654,404.80

Finding the Fourth Proportional to 141,319,620.80, 211,979,431.20 and 76,654,404.80

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Solution

The fourth proportional to 141,319,620.80, 211,979,431.20 and 76,654,404.80 is: 114,981,607.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,319,620.80 : 211,979,431.20 = 76,654,404.80 : x
  2. Step 2: Convert to fraction form
    141,319,620.80/211,979,431.20 = 76,654,404.80/x
  3. Step 3: Cross multiply
    141,319,620.80x = 211,979,431.20 × 76,654,404.80
  4. Step 4: Simplify right side
    141,319,620.80x = 16,249,157,128,478,548
  5. Step 5: Solve for x
    x = 16,249,157,128,478,548/141,319,620.80
  6. Step 6: Final answer
    x = 114,981,607.20

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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.