Home / 472,393,008.30-708,589,512.45-442,159,920.30

Finding the Fourth Proportional to 472,393,008.30, 708,589,512.45 and 442,159,920.30

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Solution

The fourth proportional to 472,393,008.30, 708,589,512.45 and 442,159,920.30 is: 663,239,880.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,393,008.30 : 708,589,512.45 = 442,159,920.30 : x
  2. Step 2: Convert to fraction form
    472,393,008.30/708,589,512.45 = 442,159,920.30/x
  3. Step 3: Cross multiply
    472,393,008.30x = 708,589,512.45 × 442,159,920.30
  4. Step 4: Simplify right side
    472,393,008.30x = 313,309,882,350,307,904
  5. Step 5: Solve for x
    x = 313,309,882,350,307,904/472,393,008.30
  6. Step 6: Final answer
    x = 663,239,880.45

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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.