Home / 88,403,428.30-132,605,142.45-66,880,067.80

Finding the Fourth Proportional to 88,403,428.30, 132,605,142.45 and 66,880,067.80

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Solution

The fourth proportional to 88,403,428.30, 132,605,142.45 and 66,880,067.80 is: 100,320,101.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,403,428.30 : 132,605,142.45 = 66,880,067.80 : x
  2. Step 2: Convert to fraction form
    88,403,428.30/132,605,142.45 = 66,880,067.80/x
  3. Step 3: Cross multiply
    88,403,428.30x = 132,605,142.45 × 66,880,067.80
  4. Step 4: Simplify right side
    88,403,428.30x = 8,868,640,917,684,658
  5. Step 5: Solve for x
    x = 8,868,640,917,684,658/88,403,428.30
  6. Step 6: Final answer
    x = 100,320,101.70

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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.