Home / 112,990,961.52-155,918,916.64-63,421,757.24

Finding the Fourth Proportional to 112,990,961.52, 155,918,916.64 and 63,421,757.24

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Solution

The fourth proportional to 112,990,961.52, 155,918,916.64 and 63,421,757.24 is: 87,517,192.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,990,961.52 : 155,918,916.64 = 63,421,757.24 : x
  2. Step 2: Convert to fraction form
    112,990,961.52/155,918,916.64 = 63,421,757.24/x
  3. Step 3: Cross multiply
    112,990,961.52x = 155,918,916.64 × 63,421,757.24
  4. Step 4: Simplify right side
    112,990,961.52x = 9,888,651,680,265,876
  5. Step 5: Solve for x
    x = 9,888,651,680,265,876/112,990,961.52
  6. Step 6: Final answer
    x = 87,517,192.06

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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.