Home / 68,287,890.66-94,239,742.05-38,923,654.02

Finding the Fourth Proportional to 68,287,890.66, 94,239,742.05 and 38,923,654.02

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Solution

The fourth proportional to 68,287,890.66, 94,239,742.05 and 38,923,654.02 is: 53,716,040.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,287,890.66 : 94,239,742.05 = 38,923,654.02 : x
  2. Step 2: Convert to fraction form
    68,287,890.66/94,239,742.05 = 38,923,654.02/x
  3. Step 3: Cross multiply
    68,287,890.66x = 94,239,742.05 × 38,923,654.02
  4. Step 4: Simplify right side
    68,287,890.66x = 3,668,155,114,488,245.50
  5. Step 5: Solve for x
    x = 3,668,155,114,488,245.50/68,287,890.66
  6. Step 6: Final answer
    x = 53,716,040.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.