Home / 82,453,243.14-123,679,759.91-21,042,402.96

Finding the Fourth Proportional to 82,453,243.14, 123,679,759.91 and 21,042,402.96

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Solution

The fourth proportional to 82,453,243.14, 123,679,759.91 and 21,042,402.96 is: 31,563,577.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,453,243.14 : 123,679,759.91 = 21,042,402.96 : x
  2. Step 2: Convert to fraction form
    82,453,243.14/123,679,759.91 = 21,042,402.96/x
  3. Step 3: Cross multiply
    82,453,243.14x = 123,679,759.91 × 21,042,402.96
  4. Step 4: Simplify right side
    82,453,243.14x = 2,602,519,346,380,860.50
  5. Step 5: Solve for x
    x = 2,602,519,346,380,860.50/82,453,243.14
  6. Step 6: Final answer
    x = 31,563,577.70

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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.