Home / 82,019,964.20-123,029,946.30-43,661,733.80

Finding the Fourth Proportional to 82,019,964.20, 123,029,946.30 and 43,661,733.80

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Solution

The fourth proportional to 82,019,964.20, 123,029,946.30 and 43,661,733.80 is: 65,492,600.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,019,964.20 : 123,029,946.30 = 43,661,733.80 : x
  2. Step 2: Convert to fraction form
    82,019,964.20/123,029,946.30 = 43,661,733.80/x
  3. Step 3: Cross multiply
    82,019,964.20x = 123,029,946.30 × 43,661,733.80
  4. Step 4: Simplify right side
    82,019,964.20x = 5,371,700,764,778,894
  5. Step 5: Solve for x
    x = 5,371,700,764,778,894/82,019,964.20
  6. Step 6: Final answer
    x = 65,492,600.70

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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.