Home / 279,937,226.80-420,115,792.20-143,552,407.60

Finding the Fourth Proportional to 279,937,226.80, 420,115,792.20 and 143,552,407.60

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Solution

The fourth proportional to 279,937,226.80, 420,115,792.20 and 143,552,407.60 is: 215,436,275.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,937,226.80 : 420,115,792.20 = 143,552,407.60 : x
  2. Step 2: Convert to fraction form
    279,937,226.80/420,115,792.20 = 143,552,407.60/x
  3. Step 3: Cross multiply
    279,937,226.80x = 420,115,792.20 × 143,552,407.60
  4. Step 4: Simplify right side
    279,937,226.80x = 60,308,633,441,091,296
  5. Step 5: Solve for x
    x = 60,308,633,441,091,296/279,937,226.80
  6. Step 6: Final answer
    x = 215,436,275.23

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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.