Home / 13,420,441.06-18,520,732.92-7,619,762.50

Finding the Fourth Proportional to 13,420,441.06, 18,520,732.92 and 7,619,762.50

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Solution

The fourth proportional to 13,420,441.06, 18,520,732.92 and 7,619,762.50 is: 10,515,569.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,420,441.06 : 18,520,732.92 = 7,619,762.50 : x
  2. Step 2: Convert to fraction form
    13,420,441.06/18,520,732.92 = 7,619,762.50/x
  3. Step 3: Cross multiply
    13,420,441.06x = 18,520,732.92 × 7,619,762.50
  4. Step 4: Simplify right side
    13,420,441.06x = 141,123,586,176,331.50
  5. Step 5: Solve for x
    x = 141,123,586,176,331.50/13,420,441.06
  6. Step 6: Final answer
    x = 10,515,569.91

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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.