Home / 84,628,943.20-126,943,414.80-79,527,109.60

Finding the Fourth Proportional to 84,628,943.20, 126,943,414.80 and 79,527,109.60

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Solution

The fourth proportional to 84,628,943.20, 126,943,414.80 and 79,527,109.60 is: 119,290,664.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,628,943.20 : 126,943,414.80 = 79,527,109.60 : x
  2. Step 2: Convert to fraction form
    84,628,943.20/126,943,414.80 = 79,527,109.60/x
  3. Step 3: Cross multiply
    84,628,943.20x = 126,943,414.80 × 79,527,109.60
  4. Step 4: Simplify right side
    84,628,943.20x = 10,095,442,861,797,862
  5. Step 5: Solve for x
    x = 10,095,442,861,797,862/84,628,943.20
  6. Step 6: Final answer
    x = 119,290,664.40

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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.