Home / 18,682,674.27-28,001,291.35-13,219,343.13

Finding the Fourth Proportional to 18,682,674.27, 28,001,291.35 and 13,219,343.13

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Solution

The fourth proportional to 18,682,674.27, 28,001,291.35 and 13,219,343.13 is: 19,812,938.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,682,674.27 : 28,001,291.35 = 13,219,343.13 : x
  2. Step 2: Convert to fraction form
    18,682,674.27/28,001,291.35 = 13,219,343.13/x
  3. Step 3: Cross multiply
    18,682,674.27x = 28,001,291.35 × 13,219,343.13
  4. Step 4: Simplify right side
    18,682,674.27x = 370,158,678,438,750.94
  5. Step 5: Solve for x
    x = 370,158,678,438,750.94/18,682,674.27
  6. Step 6: Final answer
    x = 19,812,938.61

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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.