Home / 373,912,960.88-515,990,379.85-208,901,769.68

Finding the Fourth Proportional to 373,912,960.88, 515,990,379.85 and 208,901,769.68

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Solution

The fourth proportional to 373,912,960.88, 515,990,379.85 and 208,901,769.68 is: 288,279,131.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,912,960.88 : 515,990,379.85 = 208,901,769.68 : x
  2. Step 2: Convert to fraction form
    373,912,960.88/515,990,379.85 = 208,901,769.68/x
  3. Step 3: Cross multiply
    373,912,960.88x = 515,990,379.85 × 208,901,769.68
  4. Step 4: Simplify right side
    373,912,960.88x = 107,791,303,488,520,416
  5. Step 5: Solve for x
    x = 107,791,303,488,520,416/373,912,960.88
  6. Step 6: Final answer
    x = 288,279,131.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.