Home / 8,999,400.19-12,420,788.90-5,080,350.87

Finding the Fourth Proportional to 8,999,400.19, 12,420,788.90 and 5,080,350.87

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Solution

The fourth proportional to 8,999,400.19, 12,420,788.90 and 5,080,350.87 is: 7,011,796.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,999,400.19 : 12,420,788.90 = 5,080,350.87 : x
  2. Step 2: Convert to fraction form
    8,999,400.19/12,420,788.90 = 5,080,350.87/x
  3. Step 3: Cross multiply
    8,999,400.19x = 12,420,788.90 × 5,080,350.87
  4. Step 4: Simplify right side
    8,999,400.19x = 63,101,965,694,201.34
  5. Step 5: Solve for x
    x = 63,101,965,694,201.34/8,999,400.19
  6. Step 6: Final answer
    x = 7,011,796.83

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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.