Home / 156,693,257.20-235,039,885.80-120,861,449.20

Finding the Fourth Proportional to 156,693,257.20, 235,039,885.80 and 120,861,449.20

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Solution

The fourth proportional to 156,693,257.20, 235,039,885.80 and 120,861,449.20 is: 181,292,173.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,693,257.20 : 235,039,885.80 = 120,861,449.20 : x
  2. Step 2: Convert to fraction form
    156,693,257.20/235,039,885.80 = 120,861,449.20/x
  3. Step 3: Cross multiply
    156,693,257.20x = 235,039,885.80 × 120,861,449.20
  4. Step 4: Simplify right side
    156,693,257.20x = 28,407,261,217,590,504
  5. Step 5: Solve for x
    x = 28,407,261,217,590,504/156,693,257.20
  6. Step 6: Final answer
    x = 181,292,173.80

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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.