Home / 112,990,963.52-155,918,919.40-63,421,759.24

Finding the Fourth Proportional to 112,990,963.52, 155,918,919.40 and 63,421,759.24

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Solution

The fourth proportional to 112,990,963.52, 155,918,919.40 and 63,421,759.24 is: 87,517,194.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,990,963.52 : 155,918,919.40 = 63,421,759.24 : x
  2. Step 2: Convert to fraction form
    112,990,963.52/155,918,919.40 = 63,421,759.24/x
  3. Step 3: Cross multiply
    112,990,963.52x = 155,918,919.40 × 63,421,759.24
  4. Step 4: Simplify right side
    112,990,963.52x = 9,888,652,167,147,766
  5. Step 5: Solve for x
    x = 9,888,652,167,147,766/112,990,963.52
  6. Step 6: Final answer
    x = 87,517,194.82

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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.