Home / 354,328,206.80-531,492,310.20-281,148,781.10

Finding the Fourth Proportional to 354,328,206.80, 531,492,310.20 and 281,148,781.10

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Solution

The fourth proportional to 354,328,206.80, 531,492,310.20 and 281,148,781.10 is: 421,723,171.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,328,206.80 : 531,492,310.20 = 281,148,781.10 : x
  2. Step 2: Convert to fraction form
    354,328,206.80/531,492,310.20 = 281,148,781.10/x
  3. Step 3: Cross multiply
    354,328,206.80x = 531,492,310.20 × 281,148,781.10
  4. Step 4: Simplify right side
    354,328,206.80x = 149,428,415,176,753,120
  5. Step 5: Solve for x
    x = 149,428,415,176,753,120/354,328,206.80
  6. Step 6: Final answer
    x = 421,723,171.65

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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.