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Finding the Fourth Proportional to 488,673,550.80, 673,736,530.59 and 316,508,319.72

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Solution

The fourth proportional to 488,673,550.80, 673,736,530.59 and 316,508,319.72 is: 436,371,514.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,673,550.80 : 673,736,530.59 = 316,508,319.72 : x
  2. Step 2: Convert to fraction form
    488,673,550.80/673,736,530.59 = 316,508,319.72/x
  3. Step 3: Cross multiply
    488,673,550.80x = 673,736,530.59 × 316,508,319.72
  4. Step 4: Simplify right side
    488,673,550.80x = 213,243,217,231,023,296
  5. Step 5: Solve for x
    x = 213,243,217,231,023,296/488,673,550.80
  6. Step 6: Final answer
    x = 436,371,514.03

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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.