Home / 7,974,909.20-11,965,128.60-3,490,403.60

Finding the Fourth Proportional to 7,974,909.20, 11,965,128.60 and 3,490,403.60

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Solution

The fourth proportional to 7,974,909.20, 11,965,128.60 and 3,490,403.60 is: 5,236,815.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,974,909.20 : 11,965,128.60 = 3,490,403.60 : x
  2. Step 2: Convert to fraction form
    7,974,909.20/11,965,128.60 = 3,490,403.60/x
  3. Step 3: Cross multiply
    7,974,909.20x = 11,965,128.60 × 3,490,403.60
  4. Step 4: Simplify right side
    7,974,909.20x = 41,763,127,939,902.96
  5. Step 5: Solve for x
    x = 41,763,127,939,902.96/7,974,909.20
  6. Step 6: Final answer
    x = 5,236,815.48

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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.