Home / 211,802,020.20-317,521,073.12-73,609,672.86

Finding the Fourth Proportional to 211,802,020.20, 317,521,073.12 and 73,609,672.86

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Solution

The fourth proportional to 211,802,020.20, 317,521,073.12 and 73,609,672.86 is: 110,351,271.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,802,020.20 : 317,521,073.12 = 73,609,672.86 : x
  2. Step 2: Convert to fraction form
    211,802,020.20/317,521,073.12 = 73,609,672.86/x
  3. Step 3: Cross multiply
    211,802,020.20x = 317,521,073.12 × 73,609,672.86
  4. Step 4: Simplify right side
    211,802,020.20x = 23,372,622,318,151,292
  5. Step 5: Solve for x
    x = 23,372,622,318,151,292/211,802,020.20
  6. Step 6: Final answer
    x = 110,351,271.89

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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.