Home / 10,121,279.56-13,952,838.56-7,215,625.90

Finding the Fourth Proportional to 10,121,279.56, 13,952,838.56 and 7,215,625.90

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Solution

The fourth proportional to 10,121,279.56, 13,952,838.56 and 7,215,625.90 is: 9,947,207.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,121,279.56 : 13,952,838.56 = 7,215,625.90 : x
  2. Step 2: Convert to fraction form
    10,121,279.56/13,952,838.56 = 7,215,625.90/x
  3. Step 3: Cross multiply
    10,121,279.56x = 13,952,838.56 × 7,215,625.90
  4. Step 4: Simplify right side
    10,121,279.56x = 100,678,463,292,054.72
  5. Step 5: Solve for x
    x = 100,678,463,292,054.72/10,121,279.56
  6. Step 6: Final answer
    x = 9,947,207.04

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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.