Home / 18,781,242.37-25,942,426.91-15,531,185.41

Finding the Fourth Proportional to 18,781,242.37, 25,942,426.91 and 15,531,185.41

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Solution

The fourth proportional to 18,781,242.37, 25,942,426.91 and 15,531,185.41 is: 21,453,141.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,781,242.37 : 25,942,426.91 = 15,531,185.41 : x
  2. Step 2: Convert to fraction form
    18,781,242.37/25,942,426.91 = 15,531,185.41/x
  3. Step 3: Cross multiply
    18,781,242.37x = 25,942,426.91 × 15,531,185.41
  4. Step 4: Simplify right side
    18,781,242.37x = 402,916,642,240,313.38
  5. Step 5: Solve for x
    x = 402,916,642,240,313.38/18,781,242.37
  6. Step 6: Final answer
    x = 21,453,141.08

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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.