Home / 25,491,348.78-38,237,288.32-20,406,104.31

Finding the Fourth Proportional to 25,491,348.78, 38,237,288.32 and 20,406,104.31

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Solution

The fourth proportional to 25,491,348.78, 38,237,288.32 and 20,406,104.31 is: 30,609,368.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,491,348.78 : 38,237,288.32 = 20,406,104.31 : x
  2. Step 2: Convert to fraction form
    25,491,348.78/38,237,288.32 = 20,406,104.31/x
  3. Step 3: Cross multiply
    25,491,348.78x = 38,237,288.32 × 20,406,104.31
  4. Step 4: Simplify right side
    25,491,348.78x = 780,274,094,158,362
  5. Step 5: Solve for x
    x = 780,274,094,158,362/25,491,348.78
  6. Step 6: Final answer
    x = 30,609,368.73

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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.