Home / 79,182,028.80-118,773,043.20-40,439,979.92

Finding the Fourth Proportional to 79,182,028.80, 118,773,043.20 and 40,439,979.92

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Solution

The fourth proportional to 79,182,028.80, 118,773,043.20 and 40,439,979.92 is: 60,659,969.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,182,028.80 : 118,773,043.20 = 40,439,979.92 : x
  2. Step 2: Convert to fraction form
    79,182,028.80/118,773,043.20 = 40,439,979.92/x
  3. Step 3: Cross multiply
    79,182,028.80x = 118,773,043.20 × 40,439,979.92
  4. Step 4: Simplify right side
    79,182,028.80x = 4,803,179,482,045,293
  5. Step 5: Solve for x
    x = 4,803,179,482,045,293/79,182,028.80
  6. Step 6: Final answer
    x = 60,659,969.88

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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.