Home / 18,875,919.42-28,309,278.16-5,228,711.37

Finding the Fourth Proportional to 18,875,919.42, 28,309,278.16 and 5,228,711.37

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Solution

The fourth proportional to 18,875,919.42, 28,309,278.16 and 5,228,711.37 is: 7,841,792.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,875,919.42 : 28,309,278.16 = 5,228,711.37 : x
  2. Step 2: Convert to fraction form
    18,875,919.42/28,309,278.16 = 5,228,711.37/x
  3. Step 3: Cross multiply
    18,875,919.42x = 28,309,278.16 × 5,228,711.37
  4. Step 4: Simplify right side
    18,875,919.42x = 148,021,044,591,684.69
  5. Step 5: Solve for x
    x = 148,021,044,591,684.69/18,875,919.42
  6. Step 6: Final answer
    x = 7,841,792.57

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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.