Home / 12,883,296.88-19,350,519.60-7,705,880.56

Finding the Fourth Proportional to 12,883,296.88, 19,350,519.60 and 7,705,880.56

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Solution

The fourth proportional to 12,883,296.88, 19,350,519.60 and 7,705,880.56 is: 11,574,117.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,883,296.88 : 19,350,519.60 = 7,705,880.56 : x
  2. Step 2: Convert to fraction form
    12,883,296.88/19,350,519.60 = 7,705,880.56/x
  3. Step 3: Cross multiply
    12,883,296.88x = 19,350,519.60 × 7,705,880.56
  4. Step 4: Simplify right side
    12,883,296.88x = 149,112,792,811,538.97
  5. Step 5: Solve for x
    x = 149,112,792,811,538.97/12,883,296.88
  6. Step 6: Final answer
    x = 11,574,117.57

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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.