Home / 281,930,967.68-389,033,179.72-156,488,451.52

Finding the Fourth Proportional to 281,930,967.68, 389,033,179.72 and 156,488,451.52

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Solution

The fourth proportional to 281,930,967.68, 389,033,179.72 and 156,488,451.52 is: 215,936,547.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,930,967.68 : 389,033,179.72 = 156,488,451.52 : x
  2. Step 2: Convert to fraction form
    281,930,967.68/389,033,179.72 = 156,488,451.52/x
  3. Step 3: Cross multiply
    281,930,967.68x = 389,033,179.72 × 156,488,451.52
  4. Step 4: Simplify right side
    281,930,967.68x = 60,879,199,884,284,672
  5. Step 5: Solve for x
    x = 60,879,199,884,284,672/281,930,967.68
  6. Step 6: Final answer
    x = 215,936,547.82

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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.