Home / 20,697,100.35-31,045,650.53-20,361,177.15

Finding the Fourth Proportional to 20,697,100.35, 31,045,650.53 and 20,361,177.15

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Solution

The fourth proportional to 20,697,100.35, 31,045,650.53 and 20,361,177.15 is: 30,541,765.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,697,100.35 : 31,045,650.53 = 20,361,177.15 : x
  2. Step 2: Convert to fraction form
    20,697,100.35/31,045,650.53 = 20,361,177.15/x
  3. Step 3: Cross multiply
    20,697,100.35x = 31,045,650.53 × 20,361,177.15
  4. Step 4: Simplify right side
    20,697,100.35x = 632,125,990,076,515.38
  5. Step 5: Solve for x
    x = 632,125,990,076,515.38/20,697,100.35
  6. Step 6: Final answer
    x = 30,541,765.73

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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.