Home / 10,508,930.10-15,763,395.15-7,639,148.70

Finding the Fourth Proportional to 10,508,930.10, 15,763,395.15 and 7,639,148.70

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Solution

The fourth proportional to 10,508,930.10, 15,763,395.15 and 7,639,148.70 is: 11,458,723.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,508,930.10 : 15,763,395.15 = 7,639,148.70 : x
  2. Step 2: Convert to fraction form
    10,508,930.10/15,763,395.15 = 7,639,148.70/x
  3. Step 3: Cross multiply
    10,508,930.10x = 15,763,395.15 × 7,639,148.70
  4. Step 4: Simplify right side
    10,508,930.10x = 120,418,919,567,708.81
  5. Step 5: Solve for x
    x = 120,418,919,567,708.81/10,508,930.10
  6. Step 6: Final answer
    x = 11,458,723.05

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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.