Home / 1,397,914,029.28-1,929,162,358.92-762,875,523.76

Finding the Fourth Proportional to 1,397,914,029.28, 1,929,162,358.92 and 762,875,523.76

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Solution

The fourth proportional to 1,397,914,029.28, 1,929,162,358.92 and 762,875,523.76 is: 1,052,790,596.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,914,029.28 : 1,929,162,358.92 = 762,875,523.76 : x
  2. Step 2: Convert to fraction form
    1,397,914,029.28/1,929,162,358.92 = 762,875,523.76/x
  3. Step 3: Cross multiply
    1,397,914,029.28x = 1,929,162,358.92 × 762,875,523.76
  4. Step 4: Simplify right side
    1,397,914,029.28x = 1,471,710,744,979,172,096
  5. Step 5: Solve for x
    x = 1,471,710,744,979,172,096/1,397,914,029.28
  6. Step 6: Final answer
    x = 1,052,790,596.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.