Home / 13,631,320.50-18,810,919.54-7,519,747.38

Finding the Fourth Proportional to 13,631,320.50, 18,810,919.54 and 7,519,747.38

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Solution

The fourth proportional to 13,631,320.50, 18,810,919.54 and 7,519,747.38 is: 10,377,084.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631,320.50 : 18,810,919.54 = 7,519,747.38 : x
  2. Step 2: Convert to fraction form
    13,631,320.50/18,810,919.54 = 7,519,747.38/x
  3. Step 3: Cross multiply
    13,631,320.50x = 18,810,919.54 × 7,519,747.38
  4. Step 4: Simplify right side
    13,631,320.50x = 141,453,362,926,305.78
  5. Step 5: Solve for x
    x = 141,453,362,926,305.78/13,631,320.50
  6. Step 6: Final answer
    x = 10,377,084.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.