Home / 12,931,454.20-19,396,478.10-3,956,006.20

Finding the Fourth Proportional to 12,931,454.20, 19,396,478.10 and 3,956,006.20

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Solution

The fourth proportional to 12,931,454.20, 19,396,478.10 and 3,956,006.20 is: 5,933,794.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,931,454.20 : 19,396,478.10 = 3,956,006.20 : x
  2. Step 2: Convert to fraction form
    12,931,454.20/19,396,478.10 = 3,956,006.20/x
  3. Step 3: Cross multiply
    12,931,454.20x = 19,396,478.10 × 3,956,006.20
  4. Step 4: Simplify right side
    12,931,454.20x = 76,732,587,621,764.23
  5. Step 5: Solve for x
    x = 76,732,587,621,764.23/12,931,454.20
  6. Step 6: Final answer
    x = 5,933,794.18

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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.