Home / 8,749,212.40-13,123,818.60-5,543,945.20

Finding the Fourth Proportional to 8,749,212.40, 13,123,818.60 and 5,543,945.20

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Solution

The fourth proportional to 8,749,212.40, 13,123,818.60 and 5,543,945.20 is: 8,315,917.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,749,212.40 : 13,123,818.60 = 5,543,945.20 : x
  2. Step 2: Convert to fraction form
    8,749,212.40/13,123,818.60 = 5,543,945.20/x
  3. Step 3: Cross multiply
    8,749,212.40x = 13,123,818.60 × 5,543,945.20
  4. Step 4: Simplify right side
    8,749,212.40x = 72,757,731,133,140.72
  5. Step 5: Solve for x
    x = 72,757,731,133,140.72/8,749,212.40
  6. Step 6: Final answer
    x = 8,315,917.80

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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.