Home / 200,467,231.20-300,734,024.40-85,506,847.20

Finding the Fourth Proportional to 200,467,231.20, 300,734,024.40 and 85,506,847.20

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Solution

The fourth proportional to 200,467,231.20, 300,734,024.40 and 85,506,847.20 is: 128,274,422.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,467,231.20 : 300,734,024.40 = 85,506,847.20 : x
  2. Step 2: Convert to fraction form
    200,467,231.20/300,734,024.40 = 85,506,847.20/x
  3. Step 3: Cross multiply
    200,467,231.20x = 300,734,024.40 × 85,506,847.20
  4. Step 4: Simplify right side
    200,467,231.20x = 25,714,818,272,211,872
  5. Step 5: Solve for x
    x = 25,714,818,272,211,872/200,467,231.20
  6. Step 6: Final answer
    x = 128,274,422.30

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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.