Home / 366,606,912.80-549,910,369.20-319,255,519.70

Finding the Fourth Proportional to 366,606,912.80, 549,910,369.20 and 319,255,519.70

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Solution

The fourth proportional to 366,606,912.80, 549,910,369.20 and 319,255,519.70 is: 478,883,279.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,606,912.80 : 549,910,369.20 = 319,255,519.70 : x
  2. Step 2: Convert to fraction form
    366,606,912.80/549,910,369.20 = 319,255,519.70/x
  3. Step 3: Cross multiply
    366,606,912.80x = 549,910,369.20 × 319,255,519.70
  4. Step 4: Simplify right side
    366,606,912.80x = 175,561,920,707,364,896
  5. Step 5: Solve for x
    x = 175,561,920,707,364,896/366,606,912.80
  6. Step 6: Final answer
    x = 478,883,279.55

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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.