Home / 149,236,986.80-223,855,480.20-91,761,642.65

Finding the Fourth Proportional to 149,236,986.80, 223,855,480.20 and 91,761,642.65

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Solution

The fourth proportional to 149,236,986.80, 223,855,480.20 and 91,761,642.65 is: 137,642,463.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,236,986.80 : 223,855,480.20 = 91,761,642.65 : x
  2. Step 2: Convert to fraction form
    149,236,986.80/223,855,480.20 = 91,761,642.65/x
  3. Step 3: Cross multiply
    149,236,986.80x = 223,855,480.20 × 91,761,642.65
  4. Step 4: Simplify right side
    149,236,986.80x = 20,541,346,579,356,552
  5. Step 5: Solve for x
    x = 20,541,346,579,356,552/149,236,986.80
  6. Step 6: Final answer
    x = 137,642,463.98

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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.