Home / 278,298,621.80-417,304,886.50-147,211,391.84

Finding the Fourth Proportional to 278,298,621.80, 417,304,886.50 and 147,211,391.84

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Solution

The fourth proportional to 278,298,621.80, 417,304,886.50 and 147,211,391.84 is: 220,741,420.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,298,621.80 : 417,304,886.50 = 147,211,391.84 : x
  2. Step 2: Convert to fraction form
    278,298,621.80/417,304,886.50 = 147,211,391.84/x
  3. Step 3: Cross multiply
    278,298,621.80x = 417,304,886.50 × 147,211,391.84
  4. Step 4: Simplify right side
    278,298,621.80x = 61,432,033,164,157,584
  5. Step 5: Solve for x
    x = 61,432,033,164,157,584/278,298,621.80
  6. Step 6: Final answer
    x = 220,741,420.73

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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.