Home / 10,189,785.44-15,287,175.12-8,371,225.28

Finding the Fourth Proportional to 10,189,785.44, 15,287,175.12 and 8,371,225.28

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Solution

The fourth proportional to 10,189,785.44, 15,287,175.12 and 8,371,225.28 is: 12,558,889.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,189,785.44 : 15,287,175.12 = 8,371,225.28 : x
  2. Step 2: Convert to fraction form
    10,189,785.44/15,287,175.12 = 8,371,225.28/x
  3. Step 3: Cross multiply
    10,189,785.44x = 15,287,175.12 × 8,371,225.28
  4. Step 4: Simplify right side
    10,189,785.44x = 127,972,386,824,331.03
  5. Step 5: Solve for x
    x = 127,972,386,824,331.03/10,189,785.44
  6. Step 6: Final answer
    x = 12,558,889.25

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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.