Home / 8,311,985.40-12,446,982.90-5,456,638.20

Finding the Fourth Proportional to 8,311,985.40, 12,446,982.90 and 5,456,638.20

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Solution

The fourth proportional to 8,311,985.40, 12,446,982.90 and 5,456,638.20 is: 8,171,174.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,311,985.40 : 12,446,982.90 = 5,456,638.20 : x
  2. Step 2: Convert to fraction form
    8,311,985.40/12,446,982.90 = 5,456,638.20/x
  3. Step 3: Cross multiply
    8,311,985.40x = 12,446,982.90 × 5,456,638.20
  4. Step 4: Simplify right side
    8,311,985.40x = 67,918,682,366,886.78
  5. Step 5: Solve for x
    x = 67,918,682,366,886.78/8,311,985.40
  6. Step 6: Final answer
    x = 8,171,174.41

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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.