Home / 78,046,958.88-117,031,483.12-25,517,787.52

Finding the Fourth Proportional to 78,046,958.88, 117,031,483.12 and 25,517,787.52

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Solution

The fourth proportional to 78,046,958.88, 117,031,483.12 and 25,517,787.52 is: 38,263,944.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,046,958.88 : 117,031,483.12 = 25,517,787.52 : x
  2. Step 2: Convert to fraction form
    78,046,958.88/117,031,483.12 = 25,517,787.52/x
  3. Step 3: Cross multiply
    78,046,958.88x = 117,031,483.12 × 25,517,787.52
  4. Step 4: Simplify right side
    78,046,958.88x = 2,986,384,519,406,626.50
  5. Step 5: Solve for x
    x = 2,986,384,519,406,626.50/78,046,958.88
  6. Step 6: Final answer
    x = 38,263,944.71

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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.