Home / 12,890,166.31-17,788,074.42-7,088,947.44

Finding the Fourth Proportional to 12,890,166.31, 17,788,074.42 and 7,088,947.44

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Solution

The fourth proportional to 12,890,166.31, 17,788,074.42 and 7,088,947.44 is: 9,782,552.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,890,166.31 : 17,788,074.42 = 7,088,947.44 : x
  2. Step 2: Convert to fraction form
    12,890,166.31/17,788,074.42 = 7,088,947.44/x
  3. Step 3: Cross multiply
    12,890,166.31x = 17,788,074.42 × 7,088,947.44
  4. Step 4: Simplify right side
    12,890,166.31x = 126,098,724,622,188.50
  5. Step 5: Solve for x
    x = 126,098,724,622,188.50/12,890,166.31
  6. Step 6: Final answer
    x = 9,782,552.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.