Home / 12,968,951.82-17,897,122.62-7,387,197.47

Finding the Fourth Proportional to 12,968,951.82, 17,897,122.62 and 7,387,197.47

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Solution

The fourth proportional to 12,968,951.82, 17,897,122.62 and 7,387,197.47 is: 10,194,314.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,968,951.82 : 17,897,122.62 = 7,387,197.47 : x
  2. Step 2: Convert to fraction form
    12,968,951.82/17,897,122.62 = 7,387,197.47/x
  3. Step 3: Cross multiply
    12,968,951.82x = 17,897,122.62 × 7,387,197.47
  4. Step 4: Simplify right side
    12,968,951.82x = 132,209,578,938,743.78
  5. Step 5: Solve for x
    x = 132,209,578,938,743.78/12,968,951.82
  6. Step 6: Final answer
    x = 10,194,314.92

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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.