Home / 168,488,474.40-252,732,711.60-82,282,183.20

Finding the Fourth Proportional to 168,488,474.40, 252,732,711.60 and 82,282,183.20

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Solution

The fourth proportional to 168,488,474.40, 252,732,711.60 and 82,282,183.20 is: 123,423,274.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,488,474.40 : 252,732,711.60 = 82,282,183.20 : x
  2. Step 2: Convert to fraction form
    168,488,474.40/252,732,711.60 = 82,282,183.20/x
  3. Step 3: Cross multiply
    168,488,474.40x = 252,732,711.60 × 82,282,183.20
  4. Step 4: Simplify right side
    168,488,474.40x = 20,795,399,276,503,964
  5. Step 5: Solve for x
    x = 20,795,399,276,503,964/168,488,474.40
  6. Step 6: Final answer
    x = 123,423,274.80

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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.