Home / 279,930,107.40-419,895,161.10-142,180,600.20

Finding the Fourth Proportional to 279,930,107.40, 419,895,161.10 and 142,180,600.20

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Solution

The fourth proportional to 279,930,107.40, 419,895,161.10 and 142,180,600.20 is: 213,270,900.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,930,107.40 : 419,895,161.10 = 142,180,600.20 : x
  2. Step 2: Convert to fraction form
    279,930,107.40/419,895,161.10 = 142,180,600.20/x
  3. Step 3: Cross multiply
    279,930,107.40x = 419,895,161.10 × 142,180,600.20
  4. Step 4: Simplify right side
    279,930,107.40x = 59,700,946,026,273,688
  5. Step 5: Solve for x
    x = 59,700,946,026,273,688/279,930,107.40
  6. Step 6: Final answer
    x = 213,270,900.30

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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.