Home / 10,206,476.70-15,288,719.85-7,015,206.30

Finding the Fourth Proportional to 10,206,476.70, 15,288,719.85 and 7,015,206.30

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Solution

The fourth proportional to 10,206,476.70, 15,288,719.85 and 7,015,206.30 is: 10,508,378.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,206,476.70 : 15,288,719.85 = 7,015,206.30 : x
  2. Step 2: Convert to fraction form
    10,206,476.70/15,288,719.85 = 7,015,206.30/x
  3. Step 3: Cross multiply
    10,206,476.70x = 15,288,719.85 × 7,015,206.30
  4. Step 4: Simplify right side
    10,206,476.70x = 107,253,523,810,655.05
  5. Step 5: Solve for x
    x = 107,253,523,810,655.05/10,206,476.70
  6. Step 6: Final answer
    x = 10,508,378.84

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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.