Home / 12,878,062.80-17,767,851.17-7,719,542.16

Finding the Fourth Proportional to 12,878,062.80, 17,767,851.17 and 7,719,542.16

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Solution

The fourth proportional to 12,878,062.80, 17,767,851.17 and 7,719,542.16 is: 10,650,645.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,878,062.80 : 17,767,851.17 = 7,719,542.16 : x
  2. Step 2: Convert to fraction form
    12,878,062.80/17,767,851.17 = 7,719,542.16/x
  3. Step 3: Cross multiply
    12,878,062.80x = 17,767,851.17 × 7,719,542.16
  4. Step 4: Simplify right side
    12,878,062.80x = 137,159,676,160,822.61
  5. Step 5: Solve for x
    x = 137,159,676,160,822.61/12,878,062.80
  6. Step 6: Final answer
    x = 10,650,645.08

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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.