Home / 13,215,542.18-19,830,538.46-5,128,839.14

Finding the Fourth Proportional to 13,215,542.18, 19,830,538.46 and 5,128,839.14

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Solution

The fourth proportional to 13,215,542.18, 19,830,538.46 and 5,128,839.14 is: 7,696,062.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,215,542.18 : 19,830,538.46 = 5,128,839.14 : x
  2. Step 2: Convert to fraction form
    13,215,542.18/19,830,538.46 = 5,128,839.14/x
  3. Step 3: Cross multiply
    13,215,542.18x = 19,830,538.46 × 5,128,839.14
  4. Step 4: Simplify right side
    13,215,542.18x = 101,707,641,734,592.72
  5. Step 5: Solve for x
    x = 101,707,641,734,592.72/13,215,542.18
  6. Step 6: Final answer
    x = 7,696,062.74

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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.