Home / 211,456,701.55-317,202,007.65-80,361,780.94

Finding the Fourth Proportional to 211,456,701.55, 317,202,007.65 and 80,361,780.94

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Solution

The fourth proportional to 211,456,701.55, 317,202,007.65 and 80,361,780.94 is: 120,549,115.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,456,701.55 : 317,202,007.65 = 80,361,780.94 : x
  2. Step 2: Convert to fraction form
    211,456,701.55/317,202,007.65 = 80,361,780.94/x
  3. Step 3: Cross multiply
    211,456,701.55x = 317,202,007.65 × 80,361,780.94
  4. Step 4: Simplify right side
    211,456,701.55x = 25,490,918,252,497,500
  5. Step 5: Solve for x
    x = 25,490,918,252,497,500/211,456,701.55
  6. Step 6: Final answer
    x = 120,549,115.09

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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.