Home / 629,856,670.40-944,785,005.60-319,920,279.20

Finding the Fourth Proportional to 629,856,670.40, 944,785,005.60 and 319,920,279.20

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Solution

The fourth proportional to 629,856,670.40, 944,785,005.60 and 319,920,279.20 is: 479,880,418.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,856,670.40 : 944,785,005.60 = 319,920,279.20 : x
  2. Step 2: Convert to fraction form
    629,856,670.40/944,785,005.60 = 319,920,279.20/x
  3. Step 3: Cross multiply
    629,856,670.40x = 944,785,005.60 × 319,920,279.20
  4. Step 4: Simplify right side
    629,856,670.40x = 302,255,882,775,525,568
  5. Step 5: Solve for x
    x = 302,255,882,775,525,568/629,856,670.40
  6. Step 6: Final answer
    x = 479,880,418.80

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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.