Home / 81,999,817.70-123,045,126.62-49,129,610.63

Finding the Fourth Proportional to 81,999,817.70, 123,045,126.62 and 49,129,610.63

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Solution

The fourth proportional to 81,999,817.70, 123,045,126.62 and 49,129,610.63 is: 73,721,617.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,999,817.70 : 123,045,126.62 = 49,129,610.63 : x
  2. Step 2: Convert to fraction form
    81,999,817.70/123,045,126.62 = 49,129,610.63/x
  3. Step 3: Cross multiply
    81,999,817.70x = 123,045,126.62 × 49,129,610.63
  4. Step 4: Simplify right side
    81,999,817.70x = 6,045,159,159,898,774
  5. Step 5: Solve for x
    x = 6,045,159,159,898,774/81,999,817.70
  6. Step 6: Final answer
    x = 73,721,617.07

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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.