Home / 68,711,778-94,820,231.88-39,342,137.04

Finding the Fourth Proportional to 68,711,778, 94,820,231.88 and 39,342,137.04

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Solution

The fourth proportional to 68,711,778, 94,820,231.88 and 39,342,137.04 is: 54,290,991.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,711,778 : 94,820,231.88 = 39,342,137.04 : x
  2. Step 2: Convert to fraction form
    68,711,778/94,820,231.88 = 39,342,137.04/x
  3. Step 3: Cross multiply
    68,711,778x = 94,820,231.88 × 39,342,137.04
  4. Step 4: Simplify right side
    68,711,778x = 3,730,430,556,787,536.50
  5. Step 5: Solve for x
    x = 3,730,430,556,787,536.50/68,711,778
  6. Step 6: Final answer
    x = 54,290,991.52

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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.