Home / 13,501,020.25-18,631,407.95-7,389,448.75

Finding the Fourth Proportional to 13,501,020.25, 18,631,407.95 and 7,389,448.75

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Solution

The fourth proportional to 13,501,020.25, 18,631,407.95 and 7,389,448.75 is: 10,197,439.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,501,020.25 : 18,631,407.95 = 7,389,448.75 : x
  2. Step 2: Convert to fraction form
    13,501,020.25/18,631,407.95 = 7,389,448.75/x
  3. Step 3: Cross multiply
    13,501,020.25x = 18,631,407.95 × 7,389,448.75
  4. Step 4: Simplify right side
    13,501,020.25x = 137,675,834,186,867.56
  5. Step 5: Solve for x
    x = 137,675,834,186,867.56/13,501,020.25
  6. Step 6: Final answer
    x = 10,197,439.28

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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.