Home / 10,121,279.07-13,952,837.85-7,215,625.41

Finding the Fourth Proportional to 10,121,279.07, 13,952,837.85 and 7,215,625.41

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Solution

The fourth proportional to 10,121,279.07, 13,952,837.85 and 7,215,625.41 is: 9,947,206.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,121,279.07 : 13,952,837.85 = 7,215,625.41 : x
  2. Step 2: Convert to fraction form
    10,121,279.07/13,952,837.85 = 7,215,625.41/x
  3. Step 3: Cross multiply
    10,121,279.07x = 13,952,837.85 × 7,215,625.41
  4. Step 4: Simplify right side
    10,121,279.07x = 100,678,451,332,069.77
  5. Step 5: Solve for x
    x = 100,678,451,332,069.77/10,121,279.07
  6. Step 6: Final answer
    x = 9,947,206.34

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1.5x scale

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.