Home / 82,488,010.80-123,864,208.20-65,589,207.60

Finding the Fourth Proportional to 82,488,010.80, 123,864,208.20 and 65,589,207.60

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Solution

The fourth proportional to 82,488,010.80, 123,864,208.20 and 65,589,207.60 is: 98,488,922.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,488,010.80 : 123,864,208.20 = 65,589,207.60 : x
  2. Step 2: Convert to fraction form
    82,488,010.80/123,864,208.20 = 65,589,207.60/x
  3. Step 3: Cross multiply
    82,488,010.80x = 123,864,208.20 × 65,589,207.60
  4. Step 4: Simplify right side
    82,488,010.80x = 8,124,155,265,839,423
  5. Step 5: Solve for x
    x = 8,124,155,265,839,423/82,488,010.80
  6. Step 6: Final answer
    x = 98,488,922.05

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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.