Home / 13,419,010.30-20,128,515.45-4,905,456.70

Finding the Fourth Proportional to 13,419,010.30, 20,128,515.45 and 4,905,456.70

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Solution

The fourth proportional to 13,419,010.30, 20,128,515.45 and 4,905,456.70 is: 7,358,185.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,419,010.30 : 20,128,515.45 = 4,905,456.70 : x
  2. Step 2: Convert to fraction form
    13,419,010.30/20,128,515.45 = 4,905,456.70/x
  3. Step 3: Cross multiply
    13,419,010.30x = 20,128,515.45 × 4,905,456.70
  4. Step 4: Simplify right side
    13,419,010.30x = 98,739,560,975,256.02
  5. Step 5: Solve for x
    x = 98,739,560,975,256.02/13,419,010.30
  6. Step 6: Final answer
    x = 7,358,185.05

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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.