Home / 13,171,761.60-19,745,200.80-7,784,548.80

Finding the Fourth Proportional to 13,171,761.60, 19,745,200.80 and 7,784,548.80

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Solution

The fourth proportional to 13,171,761.60, 19,745,200.80 and 7,784,548.80 is: 11,669,470.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,171,761.60 : 19,745,200.80 = 7,784,548.80 : x
  2. Step 2: Convert to fraction form
    13,171,761.60/19,745,200.80 = 7,784,548.80/x
  3. Step 3: Cross multiply
    13,171,761.60x = 19,745,200.80 × 7,784,548.80
  4. Step 4: Simplify right side
    13,171,761.60x = 153,707,479,193,399.03
  5. Step 5: Solve for x
    x = 153,707,479,193,399.03/13,171,761.60
  6. Step 6: Final answer
    x = 11,669,470.18

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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.