Home / 472,395,940.20-708,593,910.30-429,313,789.80

Finding the Fourth Proportional to 472,395,940.20, 708,593,910.30 and 429,313,789.80

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Solution

The fourth proportional to 472,395,940.20, 708,593,910.30 and 429,313,789.80 is: 643,970,684.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,395,940.20 : 708,593,910.30 = 429,313,789.80 : x
  2. Step 2: Convert to fraction form
    472,395,940.20/708,593,910.30 = 429,313,789.80/x
  3. Step 3: Cross multiply
    472,395,940.20x = 708,593,910.30 × 429,313,789.80
  4. Step 4: Simplify right side
    472,395,940.20x = 304,209,137,060,094,272
  5. Step 5: Solve for x
    x = 304,209,137,060,094,272/472,395,940.20
  6. Step 6: Final answer
    x = 643,970,684.70

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1.5x scale

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.