Home / 84,461,456.40-126,645,999.39-67,065,758.22

Finding the Fourth Proportional to 84,461,456.40, 126,645,999.39 and 67,065,758.22

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Solution

The fourth proportional to 84,461,456.40, 126,645,999.39 and 67,065,758.22 is: 100,561,964.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,461,456.40 : 126,645,999.39 = 67,065,758.22 : x
  2. Step 2: Convert to fraction form
    84,461,456.40/126,645,999.39 = 67,065,758.22/x
  3. Step 3: Cross multiply
    84,461,456.40x = 126,645,999.39 × 67,065,758.22
  4. Step 4: Simplify right side
    84,461,456.40x = 8,493,609,974,620,007
  5. Step 5: Solve for x
    x = 8,493,609,974,620,007/84,461,456.40
  6. Step 6: Final answer
    x = 100,561,964.43

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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.