Home / 211,575,781.63-317,218,788.55-107,743,998.16

Finding the Fourth Proportional to 211,575,781.63, 317,218,788.55 and 107,743,998.16

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Solution

The fourth proportional to 211,575,781.63, 317,218,788.55 and 107,743,998.16 is: 161,542,215.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,575,781.63 : 317,218,788.55 = 107,743,998.16 : x
  2. Step 2: Convert to fraction form
    211,575,781.63/317,218,788.55 = 107,743,998.16/x
  3. Step 3: Cross multiply
    211,575,781.63x = 317,218,788.55 × 107,743,998.16
  4. Step 4: Simplify right side
    211,575,781.63x = 34,178,420,569,848,628
  5. Step 5: Solve for x
    x = 34,178,420,569,848,628/211,575,781.63
  6. Step 6: Final answer
    x = 161,542,215.78

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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.