Home / 10,387,288.40-15,580,932.60-7,867,864.40

Finding the Fourth Proportional to 10,387,288.40, 15,580,932.60 and 7,867,864.40

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Solution

The fourth proportional to 10,387,288.40, 15,580,932.60 and 7,867,864.40 is: 11,801,796.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,387,288.40 : 15,580,932.60 = 7,867,864.40 : x
  2. Step 2: Convert to fraction form
    10,387,288.40/15,580,932.60 = 7,867,864.40/x
  3. Step 3: Cross multiply
    10,387,288.40x = 15,580,932.60 × 7,867,864.40
  4. Step 4: Simplify right side
    10,387,288.40x = 122,588,664,922,339.44
  5. Step 5: Solve for x
    x = 122,588,664,922,339.44/10,387,288.40
  6. Step 6: Final answer
    x = 11,801,796.60

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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.