Home / 140,045,992.20-209,927,270.70-82,508,646.60

Finding the Fourth Proportional to 140,045,992.20, 209,927,270.70 and 82,508,646.60

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Solution

The fourth proportional to 140,045,992.20, 209,927,270.70 and 82,508,646.60 is: 123,679,476.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,045,992.20 : 209,927,270.70 = 82,508,646.60 : x
  2. Step 2: Convert to fraction form
    140,045,992.20/209,927,270.70 = 82,508,646.60/x
  3. Step 3: Cross multiply
    140,045,992.20x = 209,927,270.70 × 82,508,646.60
  4. Step 4: Simplify right side
    140,045,992.20x = 17,320,814,989,888,832
  5. Step 5: Solve for x
    x = 17,320,814,989,888,832/140,045,992.20
  6. Step 6: Final answer
    x = 123,679,476.42

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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.