Home / 472,392,596.20-708,588,894.30-426,476,093.80

Finding the Fourth Proportional to 472,392,596.20, 708,588,894.30 and 426,476,093.80

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Solution

The fourth proportional to 472,392,596.20, 708,588,894.30 and 426,476,093.80 is: 639,714,140.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,596.20 : 708,588,894.30 = 426,476,093.80 : x
  2. Step 2: Convert to fraction form
    472,392,596.20/708,588,894.30 = 426,476,093.80/x
  3. Step 3: Cross multiply
    472,392,596.20x = 708,588,894.30 × 426,476,093.80
  4. Step 4: Simplify right side
    472,392,596.20x = 302,196,223,751,125,056
  5. Step 5: Solve for x
    x = 302,196,223,751,125,056/472,392,596.20
  6. Step 6: Final answer
    x = 639,714,140.70

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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.