Home / 315,543,200.80-473,314,801.20-311,238,528.70

Finding the Fourth Proportional to 315,543,200.80, 473,314,801.20 and 311,238,528.70

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Solution

The fourth proportional to 315,543,200.80, 473,314,801.20 and 311,238,528.70 is: 466,857,793.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,543,200.80 : 473,314,801.20 = 311,238,528.70 : x
  2. Step 2: Convert to fraction form
    315,543,200.80/473,314,801.20 = 311,238,528.70/x
  3. Step 3: Cross multiply
    315,543,200.80x = 473,314,801.20 × 311,238,528.70
  4. Step 4: Simplify right side
    315,543,200.80x = 147,313,802,337,420,992
  5. Step 5: Solve for x
    x = 147,313,802,337,420,992/315,543,200.80
  6. Step 6: Final answer
    x = 466,857,793.05

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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.