Home / 78,168,117.42-117,253,017.99-23,581,175.90

Finding the Fourth Proportional to 78,168,117.42, 117,253,017.99 and 23,581,175.90

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Solution

The fourth proportional to 78,168,117.42, 117,253,017.99 and 23,581,175.90 is: 35,372,017.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,168,117.42 : 117,253,017.99 = 23,581,175.90 : x
  2. Step 2: Convert to fraction form
    78,168,117.42/117,253,017.99 = 23,581,175.90/x
  3. Step 3: Cross multiply
    78,168,117.42x = 117,253,017.99 × 23,581,175.90
  4. Step 4: Simplify right side
    78,168,117.42x = 2,764,964,041,441,789
  5. Step 5: Solve for x
    x = 2,764,964,041,441,789/78,168,117.42
  6. Step 6: Final answer
    x = 35,372,017.81

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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.