Home / 315,360,191.20-473,040,286.80-85,364,773.60

Finding the Fourth Proportional to 315,360,191.20, 473,040,286.80 and 85,364,773.60

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Solution

The fourth proportional to 315,360,191.20, 473,040,286.80 and 85,364,773.60 is: 128,047,160.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,360,191.20 : 473,040,286.80 = 85,364,773.60 : x
  2. Step 2: Convert to fraction form
    315,360,191.20/473,040,286.80 = 85,364,773.60/x
  3. Step 3: Cross multiply
    315,360,191.20x = 473,040,286.80 × 85,364,773.60
  4. Step 4: Simplify right side
    315,360,191.20x = 40,380,976,986,361,064
  5. Step 5: Solve for x
    x = 40,380,976,986,361,064/315,360,191.20
  6. Step 6: Final answer
    x = 128,047,160.40

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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.