Home / 7,420,001.70-11,121,145.20-3,823,917.60

Finding the Fourth Proportional to 7,420,001.70, 11,121,145.20 and 3,823,917.60

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Solution

The fourth proportional to 7,420,001.70, 11,121,145.20 and 3,823,917.60 is: 5,731,311.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420,001.70 : 11,121,145.20 = 3,823,917.60 : x
  2. Step 2: Convert to fraction form
    7,420,001.70/11,121,145.20 = 3,823,917.60/x
  3. Step 3: Cross multiply
    7,420,001.70x = 11,121,145.20 × 3,823,917.60
  4. Step 4: Simplify right side
    7,420,001.70x = 42,526,342,862,435.52
  5. Step 5: Solve for x
    x = 42,526,342,862,435.52/7,420,001.70
  6. Step 6: Final answer
    x = 5,731,311.74

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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.