Home / 87,539,072.49-131,308,432.56-82,212,041.07

Finding the Fourth Proportional to 87,539,072.49, 131,308,432.56 and 82,212,041.07

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Solution

The fourth proportional to 87,539,072.49, 131,308,432.56 and 82,212,041.07 is: 123,317,896.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,539,072.49 : 131,308,432.56 = 82,212,041.07 : x
  2. Step 2: Convert to fraction form
    87,539,072.49/131,308,432.56 = 82,212,041.07/x
  3. Step 3: Cross multiply
    87,539,072.49x = 131,308,432.56 × 82,212,041.07
  4. Step 4: Simplify right side
    87,539,072.49x = 10,795,134,250,460,044
  5. Step 5: Solve for x
    x = 10,795,134,250,460,044/87,539,072.49
  6. Step 6: Final answer
    x = 123,317,896.15

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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.