Home / 15,419,841,167.30-21,278,970,220.97-8,901,712,517.89

Finding the Fourth Proportional to 15,419,841,167.30, 21,278,970,220.97 and 8,901,712,517.89

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Solution

The fourth proportional to 15,419,841,167.30, 21,278,970,220.97 and 8,901,712,517.89 is: 12,284,126,245.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,419,841,167.30 : 21,278,970,220.97 = 8,901,712,517.89 : x
  2. Step 2: Convert to fraction form
    15,419,841,167.30/21,278,970,220.97 = 8,901,712,517.89/x
  3. Step 3: Cross multiply
    15,419,841,167.30x = 21,278,970,220.97 × 8,901,712,517.89
  4. Step 4: Simplify right side
    15,419,841,167.30x = 189,419,275,583,937,871,872
  5. Step 5: Solve for x
    x = 189,419,275,583,937,871,872/15,419,841,167.30
  6. Step 6: Final answer
    x = 12,284,126,245.45

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1.5x scale

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.