Home / 81,999,820.84-123,045,131.26-49,129,613.76

Finding the Fourth Proportional to 81,999,820.84, 123,045,131.26 and 49,129,613.76

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Solution

The fourth proportional to 81,999,820.84, 123,045,131.26 and 49,129,613.76 is: 73,721,621.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,999,820.84 : 123,045,131.26 = 49,129,613.76 : x
  2. Step 2: Convert to fraction form
    81,999,820.84/123,045,131.26 = 49,129,613.76/x
  3. Step 3: Cross multiply
    81,999,820.84x = 123,045,131.26 × 49,129,613.76
  4. Step 4: Simplify right side
    81,999,820.84x = 6,045,159,773,852,302
  5. Step 5: Solve for x
    x = 6,045,159,773,852,302/81,999,820.84
  6. Step 6: Final answer
    x = 73,721,621.73

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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.