Home / 13,940,512.40-20,901,178.20-7,103,853.20

Finding the Fourth Proportional to 13,940,512.40, 20,901,178.20 and 7,103,853.20

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Solution

The fourth proportional to 13,940,512.40, 20,901,178.20 and 7,103,853.20 is: 10,650,892.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,940,512.40 : 20,901,178.20 = 7,103,853.20 : x
  2. Step 2: Convert to fraction form
    13,940,512.40/20,901,178.20 = 7,103,853.20/x
  3. Step 3: Cross multiply
    13,940,512.40x = 20,901,178.20 × 7,103,853.20
  4. Step 4: Simplify right side
    13,940,512.40x = 148,478,901,639,840.25
  5. Step 5: Solve for x
    x = 148,478,901,639,840.25/13,940,512.40
  6. Step 6: Final answer
    x = 10,650,892.69

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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.