Home / 125,125,843.20-187,688,764.80-120,024,009.60

Finding the Fourth Proportional to 125,125,843.20, 187,688,764.80 and 120,024,009.60

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Solution

The fourth proportional to 125,125,843.20, 187,688,764.80 and 120,024,009.60 is: 180,036,014.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,125,843.20 : 187,688,764.80 = 120,024,009.60 : x
  2. Step 2: Convert to fraction form
    125,125,843.20/187,688,764.80 = 120,024,009.60/x
  3. Step 3: Cross multiply
    125,125,843.20x = 187,688,764.80 × 120,024,009.60
  4. Step 4: Simplify right side
    125,125,843.20x = 22,527,158,108,167,344
  5. Step 5: Solve for x
    x = 22,527,158,108,167,344/125,125,843.20
  6. Step 6: Final answer
    x = 180,036,014.40

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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.