Home / 82,019,952.20-123,029,928.30-43,661,721.80

Finding the Fourth Proportional to 82,019,952.20, 123,029,928.30 and 43,661,721.80

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Solution

The fourth proportional to 82,019,952.20, 123,029,928.30 and 43,661,721.80 is: 65,492,582.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,019,952.20 : 123,029,928.30 = 43,661,721.80 : x
  2. Step 2: Convert to fraction form
    82,019,952.20/123,029,928.30 = 43,661,721.80/x
  3. Step 3: Cross multiply
    82,019,952.20x = 123,029,928.30 × 43,661,721.80
  4. Step 4: Simplify right side
    82,019,952.20x = 5,371,698,502,508,546
  5. Step 5: Solve for x
    x = 5,371,698,502,508,546/82,019,952.20
  6. Step 6: Final answer
    x = 65,492,582.70

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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.