Home / 518,412,748.73-777,619,871.51-211,704,861.60

Finding the Fourth Proportional to 518,412,748.73, 777,619,871.51 and 211,704,861.60

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Solution

The fourth proportional to 518,412,748.73, 777,619,871.51 and 211,704,861.60 is: 317,557,598.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,412,748.73 : 777,619,871.51 = 211,704,861.60 : x
  2. Step 2: Convert to fraction form
    518,412,748.73/777,619,871.51 = 211,704,861.60/x
  3. Step 3: Cross multiply
    518,412,748.73x = 777,619,871.51 × 211,704,861.60
  4. Step 4: Simplify right side
    518,412,748.73x = 164,625,907,275,434,336
  5. Step 5: Solve for x
    x = 164,625,907,275,434,336/518,412,748.73
  6. Step 6: Final answer
    x = 317,557,598.03

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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.