Home / 808,703,939.70-1,213,055,909.55-291,214,250.10

Finding the Fourth Proportional to 808,703,939.70, 1,213,055,909.55 and 291,214,250.10

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Solution

The fourth proportional to 808,703,939.70, 1,213,055,909.55 and 291,214,250.10 is: 436,821,375.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,703,939.70 : 1,213,055,909.55 = 291,214,250.10 : x
  2. Step 2: Convert to fraction form
    808,703,939.70/1,213,055,909.55 = 291,214,250.10/x
  3. Step 3: Cross multiply
    808,703,939.70x = 1,213,055,909.55 × 291,214,250.10
  4. Step 4: Simplify right side
    808,703,939.70x = 353,259,167,028,976,704
  5. Step 5: Solve for x
    x = 353,259,167,028,976,704/808,703,939.70
  6. Step 6: Final answer
    x = 436,821,375.15

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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.