Home / 13,047,680.54-18,006,021.78-7,167,562.76

Finding the Fourth Proportional to 13,047,680.54, 18,006,021.78 and 7,167,562.76

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Solution

The fourth proportional to 13,047,680.54, 18,006,021.78 and 7,167,562.76 is: 9,891,358.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,047,680.54 : 18,006,021.78 = 7,167,562.76 : x
  2. Step 2: Convert to fraction form
    13,047,680.54/18,006,021.78 = 7,167,562.76/x
  3. Step 3: Cross multiply
    13,047,680.54x = 18,006,021.78 × 7,167,562.76
  4. Step 4: Simplify right side
    13,047,680.54x = 129,059,291,166,076.92
  5. Step 5: Solve for x
    x = 129,059,291,166,076.92/13,047,680.54
  6. Step 6: Final answer
    x = 9,891,358.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.