Home / 18,372,851.70-27,559,277.55-8,142,612.45

Finding the Fourth Proportional to 18,372,851.70, 27,559,277.55 and 8,142,612.45

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Solution

The fourth proportional to 18,372,851.70, 27,559,277.55 and 8,142,612.45 is: 12,213,918.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,372,851.70 : 27,559,277.55 = 8,142,612.45 : x
  2. Step 2: Convert to fraction form
    18,372,851.70/27,559,277.55 = 8,142,612.45/x
  3. Step 3: Cross multiply
    18,372,851.70x = 27,559,277.55 × 8,142,612.45
  4. Step 4: Simplify right side
    18,372,851.70x = 224,404,516,491,635.50
  5. Step 5: Solve for x
    x = 224,404,516,491,635.50/18,372,851.70
  6. Step 6: Final answer
    x = 12,213,918.68

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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.