Home / 278,423,557.20-417,954,200.40-163,472,868.90

Finding the Fourth Proportional to 278,423,557.20, 417,954,200.40 and 163,472,868.90

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Solution

The fourth proportional to 278,423,557.20, 417,954,200.40 and 163,472,868.90 is: 245,396,520.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,423,557.20 : 417,954,200.40 = 163,472,868.90 : x
  2. Step 2: Convert to fraction form
    278,423,557.20/417,954,200.40 = 163,472,868.90/x
  3. Step 3: Cross multiply
    278,423,557.20x = 417,954,200.40 × 163,472,868.90
  4. Step 4: Simplify right side
    278,423,557.20x = 68,324,172,208,193,528
  5. Step 5: Solve for x
    x = 68,324,172,208,193,528/278,423,557.20
  6. Step 6: Final answer
    x = 245,396,520.67

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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.