Home / 10,109,540.80-15,164,311.20-7,718,056.30

Finding the Fourth Proportional to 10,109,540.80, 15,164,311.20 and 7,718,056.30

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Solution

The fourth proportional to 10,109,540.80, 15,164,311.20 and 7,718,056.30 is: 11,577,084.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,109,540.80 : 15,164,311.20 = 7,718,056.30 : x
  2. Step 2: Convert to fraction form
    10,109,540.80/15,164,311.20 = 7,718,056.30/x
  3. Step 3: Cross multiply
    10,109,540.80x = 15,164,311.20 × 7,718,056.30
  4. Step 4: Simplify right side
    10,109,540.80x = 117,039,007,592,320.55
  5. Step 5: Solve for x
    x = 117,039,007,592,320.55/10,109,540.80
  6. Step 6: Final answer
    x = 11,577,084.45

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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.