Home / 12,571,422.70-18,829,140.45-10,891,806.70

Finding the Fourth Proportional to 12,571,422.70, 18,829,140.45 and 10,891,806.70

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Solution

The fourth proportional to 12,571,422.70, 18,829,140.45 and 10,891,806.70 is: 16,313,456.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,571,422.70 : 18,829,140.45 = 10,891,806.70 : x
  2. Step 2: Convert to fraction form
    12,571,422.70/18,829,140.45 = 10,891,806.70/x
  3. Step 3: Cross multiply
    12,571,422.70x = 18,829,140.45 × 10,891,806.70
  4. Step 4: Simplify right side
    12,571,422.70x = 205,083,358,108,551
  5. Step 5: Solve for x
    x = 205,083,358,108,551/12,571,422.70
  6. Step 6: Final answer
    x = 16,313,456.56

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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.