Home / 278,581,379.99-417,873,850.79-81,843,988.50

Finding the Fourth Proportional to 278,581,379.99, 417,873,850.79 and 81,843,988.50

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Solution

The fourth proportional to 278,581,379.99, 417,873,850.79 and 81,843,988.50 is: 122,766,505.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,581,379.99 : 417,873,850.79 = 81,843,988.50 : x
  2. Step 2: Convert to fraction form
    278,581,379.99/417,873,850.79 = 81,843,988.50/x
  3. Step 3: Cross multiply
    278,581,379.99x = 417,873,850.79 × 81,843,988.50
  4. Step 4: Simplify right side
    278,581,379.99x = 34,200,462,638,098,260
  5. Step 5: Solve for x
    x = 34,200,462,638,098,260/278,581,379.99
  6. Step 6: Final answer
    x = 122,766,505.93

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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.