Home / 140,045,708.70-209,926,845.45-82,508,363.10

Finding the Fourth Proportional to 140,045,708.70, 209,926,845.45 and 82,508,363.10

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Solution

The fourth proportional to 140,045,708.70, 209,926,845.45 and 82,508,363.10 is: 123,679,051.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,045,708.70 : 209,926,845.45 = 82,508,363.10 : x
  2. Step 2: Convert to fraction form
    140,045,708.70/209,926,845.45 = 82,508,363.10/x
  3. Step 3: Cross multiply
    140,045,708.70x = 209,926,845.45 × 82,508,363.10
  4. Step 4: Simplify right side
    140,045,708.70x = 17,320,720,388,826,180
  5. Step 5: Solve for x
    x = 17,320,720,388,826,180/140,045,708.70
  6. Step 6: Final answer
    x = 123,679,051.29

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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.