Home / 10,121,265.39-13,952,819.07-7,215,611.72

Finding the Fourth Proportional to 10,121,265.39, 13,952,819.07 and 7,215,611.72

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Solution

The fourth proportional to 10,121,265.39, 13,952,819.07 and 7,215,611.72 is: 9,947,187.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,121,265.39 : 13,952,819.07 = 7,215,611.72 : x
  2. Step 2: Convert to fraction form
    10,121,265.39/13,952,819.07 = 7,215,611.72/x
  3. Step 3: Cross multiply
    10,121,265.39x = 13,952,819.07 × 7,215,611.72
  4. Step 4: Simplify right side
    10,121,265.39x = 100,678,124,791,090.48
  5. Step 5: Solve for x
    x = 100,678,124,791,090.48/10,121,265.39
  6. Step 6: Final answer
    x = 9,947,187.53

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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.