Home / 79,418,405.61-118,761,904.41-75,544,200.72

Finding the Fourth Proportional to 79,418,405.61, 118,761,904.41 and 75,544,200.72

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Solution

The fourth proportional to 79,418,405.61, 118,761,904.41 and 75,544,200.72 is: 112,968,436.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,418,405.61 : 118,761,904.41 = 75,544,200.72 : x
  2. Step 2: Convert to fraction form
    79,418,405.61/118,761,904.41 = 75,544,200.72/x
  3. Step 3: Cross multiply
    79,418,405.61x = 118,761,904.41 × 75,544,200.72
  4. Step 4: Simplify right side
    79,418,405.61x = 8,971,773,144,638,493
  5. Step 5: Solve for x
    x = 8,971,773,144,638,493/79,418,405.61
  6. Step 6: Final answer
    x = 112,968,436.92

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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.