Home / 13,147,325.20-19,720,987.80-8,082,211.60

Finding the Fourth Proportional to 13,147,325.20, 19,720,987.80 and 8,082,211.60

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Solution

The fourth proportional to 13,147,325.20, 19,720,987.80 and 8,082,211.60 is: 12,123,317.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,147,325.20 : 19,720,987.80 = 8,082,211.60 : x
  2. Step 2: Convert to fraction form
    13,147,325.20/19,720,987.80 = 8,082,211.60/x
  3. Step 3: Cross multiply
    13,147,325.20x = 19,720,987.80 × 8,082,211.60
  4. Step 4: Simplify right side
    13,147,325.20x = 159,389,196,360,618.47
  5. Step 5: Solve for x
    x = 159,389,196,360,618.47/13,147,325.20
  6. Step 6: Final answer
    x = 12,123,317.40

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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.