Home / 8,991,332.20-13,486,998.30-8,172,519.40

Finding the Fourth Proportional to 8,991,332.20, 13,486,998.30 and 8,172,519.40

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Solution

The fourth proportional to 8,991,332.20, 13,486,998.30 and 8,172,519.40 is: 12,258,779.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,991,332.20 : 13,486,998.30 = 8,172,519.40 : x
  2. Step 2: Convert to fraction form
    8,991,332.20/13,486,998.30 = 8,172,519.40/x
  3. Step 3: Cross multiply
    8,991,332.20x = 13,486,998.30 × 8,172,519.40
  4. Step 4: Simplify right side
    8,991,332.20x = 110,222,755,254,517.03
  5. Step 5: Solve for x
    x = 110,222,755,254,517.03/8,991,332.20
  6. Step 6: Final answer
    x = 12,258,779.10

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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.