Home / 45,972,932-68,959,743.60-20,407,068.32

Finding the Fourth Proportional to 45,972,932, 68,959,743.60 and 20,407,068.32

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Solution

The fourth proportional to 45,972,932, 68,959,743.60 and 20,407,068.32 is: 30,610,755.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,972,932 : 68,959,743.60 = 20,407,068.32 : x
  2. Step 2: Convert to fraction form
    45,972,932/68,959,743.60 = 20,407,068.32/x
  3. Step 3: Cross multiply
    45,972,932x = 68,959,743.60 × 20,407,068.32
  4. Step 4: Simplify right side
    45,972,932x = 1,407,266,198,974,882.75
  5. Step 5: Solve for x
    x = 1,407,266,198,974,882.75/45,972,932
  6. Step 6: Final answer
    x = 30,610,755.89

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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.