Home / 218,645,117.30-328,093,647.15-82,428,259.70

Finding the Fourth Proportional to 218,645,117.30, 328,093,647.15 and 82,428,259.70

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Solution

The fourth proportional to 218,645,117.30, 328,093,647.15 and 82,428,259.70 is: 123,689,880.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,645,117.30 : 328,093,647.15 = 82,428,259.70 : x
  2. Step 2: Convert to fraction form
    218,645,117.30/328,093,647.15 = 82,428,259.70/x
  3. Step 3: Cross multiply
    218,645,117.30x = 328,093,647.15 × 82,428,259.70
  4. Step 4: Simplify right side
    218,645,117.30x = 27,044,188,353,200,364
  5. Step 5: Solve for x
    x = 27,044,188,353,200,364/218,645,117.30
  6. Step 6: Final answer
    x = 123,689,880.15

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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.