Home / 10,132,117.20-15,164,998.20-7,876,040.40

Finding the Fourth Proportional to 10,132,117.20, 15,164,998.20 and 7,876,040.40

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Solution

The fourth proportional to 10,132,117.20, 15,164,998.20 and 7,876,040.40 is: 11,788,270.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,132,117.20 : 15,164,998.20 = 7,876,040.40 : x
  2. Step 2: Convert to fraction form
    10,132,117.20/15,164,998.20 = 7,876,040.40/x
  3. Step 3: Cross multiply
    10,132,117.20x = 15,164,998.20 × 7,876,040.40
  4. Step 4: Simplify right side
    10,132,117.20x = 119,440,138,489,127.28
  5. Step 5: Solve for x
    x = 119,440,138,489,127.28/10,132,117.20
  6. Step 6: Final answer
    x = 11,788,270.52

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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.