Home / 12,841,258.47-17,720,932.41-7,039,915.80

Finding the Fourth Proportional to 12,841,258.47, 17,720,932.41 and 7,039,915.80

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Solution

The fourth proportional to 12,841,258.47, 17,720,932.41 and 7,039,915.80 is: 9,715,081.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,841,258.47 : 17,720,932.41 = 7,039,915.80 : x
  2. Step 2: Convert to fraction form
    12,841,258.47/17,720,932.41 = 7,039,915.80/x
  3. Step 3: Cross multiply
    12,841,258.47x = 17,720,932.41 × 7,039,915.80
  4. Step 4: Simplify right side
    12,841,258.47x = 124,753,872,063,891.08
  5. Step 5: Solve for x
    x = 124,753,872,063,891.08/12,841,258.47
  6. Step 6: Final answer
    x = 9,715,081.46

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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.