Home / 12,640,617.84-18,949,729.32-9,441,882.48

Finding the Fourth Proportional to 12,640,617.84, 18,949,729.32 and 9,441,882.48

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Solution

The fourth proportional to 12,640,617.84, 18,949,729.32 and 9,441,882.48 is: 14,154,459.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,640,617.84 : 18,949,729.32 = 9,441,882.48 : x
  2. Step 2: Convert to fraction form
    12,640,617.84/18,949,729.32 = 9,441,882.48/x
  3. Step 3: Cross multiply
    12,640,617.84x = 18,949,729.32 × 9,441,882.48
  4. Step 4: Simplify right side
    12,640,617.84x = 178,921,117,267,250.31
  5. Step 5: Solve for x
    x = 178,921,117,267,250.31/12,640,617.84
  6. Step 6: Final answer
    x = 14,154,459.82

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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.