Home / 12,505,825.20-18,760,811.40-5,320,801.20

Finding the Fourth Proportional to 12,505,825.20, 18,760,811.40 and 5,320,801.20

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Solution

The fourth proportional to 12,505,825.20, 18,760,811.40 and 5,320,801.20 is: 7,982,084.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,505,825.20 : 18,760,811.40 = 5,320,801.20 : x
  2. Step 2: Convert to fraction form
    12,505,825.20/18,760,811.40 = 5,320,801.20/x
  3. Step 3: Cross multiply
    12,505,825.20x = 18,760,811.40 × 5,320,801.20
  4. Step 4: Simplify right side
    12,505,825.20x = 99,822,547,810,093.67
  5. Step 5: Solve for x
    x = 99,822,547,810,093.67/12,505,825.20
  6. Step 6: Final answer
    x = 7,982,084.05

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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.