Home / 211,640,203.82-317,461,375.92-66,061,561.88

Finding the Fourth Proportional to 211,640,203.82, 317,461,375.92 and 66,061,561.88

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Solution

The fourth proportional to 211,640,203.82, 317,461,375.92 and 66,061,561.88 is: 99,092,676.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,640,203.82 : 317,461,375.92 = 66,061,561.88 : x
  2. Step 2: Convert to fraction form
    211,640,203.82/317,461,375.92 = 66,061,561.88/x
  3. Step 3: Cross multiply
    211,640,203.82x = 317,461,375.92 × 66,061,561.88
  4. Step 4: Simplify right side
    211,640,203.82x = 20,971,994,329,849,024
  5. Step 5: Solve for x
    x = 20,971,994,329,849,024/211,640,203.82
  6. Step 6: Final answer
    x = 99,092,676.87

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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.