Home / 12,378,817.60-18,576,099.60-7,261,237.60

Finding the Fourth Proportional to 12,378,817.60, 18,576,099.60 and 7,261,237.60

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Solution

The fourth proportional to 12,378,817.60, 18,576,099.60 and 7,261,237.60 is: 10,896,474.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,378,817.60 : 18,576,099.60 = 7,261,237.60 : x
  2. Step 2: Convert to fraction form
    12,378,817.60/18,576,099.60 = 7,261,237.60/x
  3. Step 3: Cross multiply
    12,378,817.60x = 18,576,099.60 × 7,261,237.60
  4. Step 4: Simplify right side
    12,378,817.60x = 134,885,472,876,864.97
  5. Step 5: Solve for x
    x = 134,885,472,876,864.97/12,378,817.60
  6. Step 6: Final answer
    x = 10,896,474.71

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1.5x scale

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.