Home / 20,487,945.60-30,731,918.40-15,952,982.40

Finding the Fourth Proportional to 20,487,945.60, 30,731,918.40 and 15,952,982.40

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Solution

The fourth proportional to 20,487,945.60, 30,731,918.40 and 15,952,982.40 is: 23,929,473.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,487,945.60 : 30,731,918.40 = 15,952,982.40 : x
  2. Step 2: Convert to fraction form
    20,487,945.60/30,731,918.40 = 15,952,982.40/x
  3. Step 3: Cross multiply
    20,487,945.60x = 30,731,918.40 × 15,952,982.40
  4. Step 4: Simplify right side
    20,487,945.60x = 490,265,753,353,436.12
  5. Step 5: Solve for x
    x = 490,265,753,353,436.12/20,487,945.60
  6. Step 6: Final answer
    x = 23,929,473.60

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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.