Home / 7,971,638.40-11,959,207.20-2,579,371.20

Finding the Fourth Proportional to 7,971,638.40, 11,959,207.20 and 2,579,371.20

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Solution

The fourth proportional to 7,971,638.40, 11,959,207.20 and 2,579,371.20 is: 3,869,622.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,971,638.40 : 11,959,207.20 = 2,579,371.20 : x
  2. Step 2: Convert to fraction form
    7,971,638.40/11,959,207.20 = 2,579,371.20/x
  3. Step 3: Cross multiply
    7,971,638.40x = 11,959,207.20 × 2,579,371.20
  4. Step 4: Simplify right side
    7,971,638.40x = 30,847,234,626,512.64
  5. Step 5: Solve for x
    x = 30,847,234,626,512.64/7,971,638.40
  6. Step 6: Final answer
    x = 3,869,622.92

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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.