Home / 475,270,672.80-712,906,009.20-312,011,997.60

Finding the Fourth Proportional to 475,270,672.80, 712,906,009.20 and 312,011,997.60

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Solution

The fourth proportional to 475,270,672.80, 712,906,009.20 and 312,011,997.60 is: 468,017,996.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,270,672.80 : 712,906,009.20 = 312,011,997.60 : x
  2. Step 2: Convert to fraction form
    475,270,672.80/712,906,009.20 = 312,011,997.60/x
  3. Step 3: Cross multiply
    475,270,672.80x = 712,906,009.20 × 312,011,997.60
  4. Step 4: Simplify right side
    475,270,672.80x = 222,435,228,031,536,000
  5. Step 5: Solve for x
    x = 222,435,228,031,536,000/475,270,672.80
  6. Step 6: Final answer
    x = 468,017,996.40

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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.