Home / 10,189,785.94-15,287,175.87-8,371,225.78

Finding the Fourth Proportional to 10,189,785.94, 15,287,175.87 and 8,371,225.78

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Solution

The fourth proportional to 10,189,785.94, 15,287,175.87 and 8,371,225.78 is: 12,558,890.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,189,785.94 : 15,287,175.87 = 8,371,225.78 : x
  2. Step 2: Convert to fraction form
    10,189,785.94/15,287,175.87 = 8,371,225.78/x
  3. Step 3: Cross multiply
    10,189,785.94x = 15,287,175.87 × 8,371,225.78
  4. Step 4: Simplify right side
    10,189,785.94x = 127,972,400,746,337.92
  5. Step 5: Solve for x
    x = 127,972,400,746,337.92/10,189,785.94
  6. Step 6: Final answer
    x = 12,558,890.00

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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.