Home / 445,711,138.80-668,566,708.20-343,674,466.80

Finding the Fourth Proportional to 445,711,138.80, 668,566,708.20 and 343,674,466.80

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Solution

The fourth proportional to 445,711,138.80, 668,566,708.20 and 343,674,466.80 is: 515,511,700.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,711,138.80 : 668,566,708.20 = 343,674,466.80 : x
  2. Step 2: Convert to fraction form
    445,711,138.80/668,566,708.20 = 343,674,466.80/x
  3. Step 3: Cross multiply
    445,711,138.80x = 668,566,708.20 × 343,674,466.80
  4. Step 4: Simplify right side
    445,711,138.80x = 229,769,306,960,866,208
  5. Step 5: Solve for x
    x = 229,769,306,960,866,208/445,711,138.80
  6. Step 6: Final answer
    x = 515,511,700.20

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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.