Home / 391,984,080.80-587,976,121.20-275,082,807.20

Finding the Fourth Proportional to 391,984,080.80, 587,976,121.20 and 275,082,807.20

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Solution

The fourth proportional to 391,984,080.80, 587,976,121.20 and 275,082,807.20 is: 412,624,210.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,984,080.80 : 587,976,121.20 = 275,082,807.20 : x
  2. Step 2: Convert to fraction form
    391,984,080.80/587,976,121.20 = 275,082,807.20/x
  3. Step 3: Cross multiply
    391,984,080.80x = 587,976,121.20 × 275,082,807.20
  4. Step 4: Simplify right side
    391,984,080.80x = 161,742,121,986,263,424
  5. Step 5: Solve for x
    x = 161,742,121,986,263,424/391,984,080.80
  6. Step 6: Final answer
    x = 412,624,210.80

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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.