Home / 13,526,180.65-20,289,566.35-8,139,337.21

Finding the Fourth Proportional to 13,526,180.65, 20,289,566.35 and 8,139,337.21

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Solution

The fourth proportional to 13,526,180.65, 20,289,566.35 and 8,139,337.21 is: 12,209,183.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,526,180.65 : 20,289,566.35 = 8,139,337.21 : x
  2. Step 2: Convert to fraction form
    13,526,180.65/20,289,566.35 = 8,139,337.21/x
  3. Step 3: Cross multiply
    13,526,180.65x = 20,289,566.35 × 8,139,337.21
  4. Step 4: Simplify right side
    13,526,180.65x = 165,143,622,265,871.06
  5. Step 5: Solve for x
    x = 165,143,622,265,871.06/13,526,180.65
  6. Step 6: Final answer
    x = 12,209,183.55

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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.