Home / 4,920,961.60-7,381,442.40-3,131,776.90

Finding the Fourth Proportional to 4,920,961.60, 7,381,442.40 and 3,131,776.90

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Solution

The fourth proportional to 4,920,961.60, 7,381,442.40 and 3,131,776.90 is: 4,697,665.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920,961.60 : 7,381,442.40 = 3,131,776.90 : x
  2. Step 2: Convert to fraction form
    4,920,961.60/7,381,442.40 = 3,131,776.90/x
  3. Step 3: Cross multiply
    4,920,961.60x = 7,381,442.40 × 3,131,776.90
  4. Step 4: Simplify right side
    4,920,961.60x = 23,117,030,797,000.56
  5. Step 5: Solve for x
    x = 23,117,030,797,000.56/4,920,961.60
  6. Step 6: Final answer
    x = 4,697,665.35

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1.5x scale

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.