Home / 8,690,672.70-13,036,009.05-5,478,407.10

Finding the Fourth Proportional to 8,690,672.70, 13,036,009.05 and 5,478,407.10

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Solution

The fourth proportional to 8,690,672.70, 13,036,009.05 and 5,478,407.10 is: 8,217,610.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,690,672.70 : 13,036,009.05 = 5,478,407.10 : x
  2. Step 2: Convert to fraction form
    8,690,672.70/13,036,009.05 = 5,478,407.10/x
  3. Step 3: Cross multiply
    8,690,672.70x = 13,036,009.05 × 5,478,407.10
  4. Step 4: Simplify right side
    8,690,672.70x = 71,416,564,535,184.25
  5. Step 5: Solve for x
    x = 71,416,564,535,184.25/8,690,672.70
  6. Step 6: Final answer
    x = 8,217,610.65

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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.