Home / 318,813,713.40-439,949,331-177,677,423.76

Finding the Fourth Proportional to 318,813,713.40, 439,949,331 and 177,677,423.76

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Solution

The fourth proportional to 318,813,713.40, 439,949,331 and 177,677,423.76 is: 245,187,269.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,813,713.40 : 439,949,331 = 177,677,423.76 : x
  2. Step 2: Convert to fraction form
    318,813,713.40/439,949,331 = 177,677,423.76/x
  3. Step 3: Cross multiply
    318,813,713.40x = 439,949,331 × 177,677,423.76
  4. Step 4: Simplify right side
    318,813,713.40x = 78,169,063,717,015,504
  5. Step 5: Solve for x
    x = 78,169,063,717,015,504/318,813,713.40
  6. Step 6: Final answer
    x = 245,187,269.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.