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Finding the Fourth Proportional to 657,948,131.40, 986,914,588.48 and 159,961,466.90

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Solution

The fourth proportional to 657,948,131.40, 986,914,588.48 and 159,961,466.90 is: 239,940,350.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,948,131.40 : 986,914,588.48 = 159,961,466.90 : x
  2. Step 2: Convert to fraction form
    657,948,131.40/986,914,588.48 = 159,961,466.90/x
  3. Step 3: Cross multiply
    657,948,131.40x = 986,914,588.48 × 159,961,466.90
  4. Step 4: Simplify right side
    657,948,131.40x = 157,868,305,278,270,656
  5. Step 5: Solve for x
    x = 157,868,305,278,270,656/657,948,131.40
  6. Step 6: Final answer
    x = 239,940,350.53

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1.5x scale

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.