Home / 206,958,172.29-310,520,074.65-84,145,929.78

Finding the Fourth Proportional to 206,958,172.29, 310,520,074.65 and 84,145,929.78

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Solution

The fourth proportional to 206,958,172.29, 310,520,074.65 and 84,145,929.78 is: 126,252,566.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,958,172.29 : 310,520,074.65 = 84,145,929.78 : x
  2. Step 2: Convert to fraction form
    206,958,172.29/310,520,074.65 = 84,145,929.78/x
  3. Step 3: Cross multiply
    206,958,172.29x = 310,520,074.65 × 84,145,929.78
  4. Step 4: Simplify right side
    206,958,172.29x = 26,129,000,396,779,256
  5. Step 5: Solve for x
    x = 26,129,000,396,779,256/206,958,172.29
  6. Step 6: Final answer
    x = 126,252,566.44

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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.