Home / 20,518,119.72-30,785,657.85-8,997,625.80

Finding the Fourth Proportional to 20,518,119.72, 30,785,657.85 and 8,997,625.80

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Solution

The fourth proportional to 20,518,119.72, 30,785,657.85 and 8,997,625.80 is: 13,500,156.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,518,119.72 : 30,785,657.85 = 8,997,625.80 : x
  2. Step 2: Convert to fraction form
    20,518,119.72/30,785,657.85 = 8,997,625.80/x
  3. Step 3: Cross multiply
    20,518,119.72x = 30,785,657.85 × 8,997,625.80
  4. Step 4: Simplify right side
    20,518,119.72x = 276,997,829,341,132.56
  5. Step 5: Solve for x
    x = 276,997,829,341,132.56/20,518,119.72
  6. Step 6: Final answer
    x = 13,500,156.60

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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.