Home / 13,728,386.40-18,945,121.44-7,533,537

Finding the Fourth Proportional to 13,728,386.40, 18,945,121.44 and 7,533,537

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Solution

The fourth proportional to 13,728,386.40, 18,945,121.44 and 7,533,537 is: 10,396,252.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,728,386.40 : 18,945,121.44 = 7,533,537 : x
  2. Step 2: Convert to fraction form
    13,728,386.40/18,945,121.44 = 7,533,537/x
  3. Step 3: Cross multiply
    13,728,386.40x = 18,945,121.44 × 7,533,537
  4. Step 4: Simplify right side
    13,728,386.40x = 142,723,773,337,733.28
  5. Step 5: Solve for x
    x = 142,723,773,337,733.28/13,728,386.40
  6. Step 6: Final answer
    x = 10,396,252.64

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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.