Home / 7,881,755.29-11,813,047.90-5,576,912.45

Finding the Fourth Proportional to 7,881,755.29, 11,813,047.90 and 5,576,912.45

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Solution

The fourth proportional to 7,881,755.29, 11,813,047.90 and 5,576,912.45 is: 8,358,586.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,881,755.29 : 11,813,047.90 = 5,576,912.45 : x
  2. Step 2: Convert to fraction form
    7,881,755.29/11,813,047.90 = 5,576,912.45/x
  3. Step 3: Cross multiply
    7,881,755.29x = 11,813,047.90 × 5,576,912.45
  4. Step 4: Simplify right side
    7,881,755.29x = 65,880,333,921,546.70
  5. Step 5: Solve for x
    x = 65,880,333,921,546.70/7,881,755.29
  6. Step 6: Final answer
    x = 8,358,586.57

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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.