Home / 472,560,221.80-708,840,332.70-407,936,996.20

Finding the Fourth Proportional to 472,560,221.80, 708,840,332.70 and 407,936,996.20

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Solution

The fourth proportional to 472,560,221.80, 708,840,332.70 and 407,936,996.20 is: 611,905,494.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,560,221.80 : 708,840,332.70 = 407,936,996.20 : x
  2. Step 2: Convert to fraction form
    472,560,221.80/708,840,332.70 = 407,936,996.20/x
  3. Step 3: Cross multiply
    472,560,221.80x = 708,840,332.70 × 407,936,996.20
  4. Step 4: Simplify right side
    472,560,221.80x = 289,162,196,107,046,656
  5. Step 5: Solve for x
    x = 289,162,196,107,046,656/472,560,221.80
  6. Step 6: Final answer
    x = 611,905,494.30

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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.