Home / 20,157,861.60-30,236,792.40-18,898,149.60

Finding the Fourth Proportional to 20,157,861.60, 30,236,792.40 and 18,898,149.60

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Solution

The fourth proportional to 20,157,861.60, 30,236,792.40 and 18,898,149.60 is: 28,347,224.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,157,861.60 : 30,236,792.40 = 18,898,149.60 : x
  2. Step 2: Convert to fraction form
    20,157,861.60/30,236,792.40 = 18,898,149.60/x
  3. Step 3: Cross multiply
    20,157,861.60x = 30,236,792.40 × 18,898,149.60
  4. Step 4: Simplify right side
    20,157,861.60x = 571,419,426,199,343
  5. Step 5: Solve for x
    x = 571,419,426,199,343/20,157,861.60
  6. Step 6: Final answer
    x = 28,347,224.40

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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.