Home / 13,269,163.40-19,896,610.02-7,806,146.76

Finding the Fourth Proportional to 13,269,163.40, 19,896,610.02 and 7,806,146.76

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Solution

The fourth proportional to 13,269,163.40, 19,896,610.02 and 7,806,146.76 is: 11,705,022.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,269,163.40 : 19,896,610.02 = 7,806,146.76 : x
  2. Step 2: Convert to fraction form
    13,269,163.40/19,896,610.02 = 7,806,146.76/x
  3. Step 3: Cross multiply
    13,269,163.40x = 19,896,610.02 × 7,806,146.76
  4. Step 4: Simplify right side
    13,269,163.40x = 155,315,857,842,606.53
  5. Step 5: Solve for x
    x = 155,315,857,842,606.53/13,269,163.40
  6. Step 6: Final answer
    x = 11,705,022.63

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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.