Home / 18,517,707.21-25,553,342.55-10,143,411.48

Finding the Fourth Proportional to 18,517,707.21, 25,553,342.55 and 10,143,411.48

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Solution

The fourth proportional to 18,517,707.21, 25,553,342.55 and 10,143,411.48 is: 13,997,308.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,517,707.21 : 25,553,342.55 = 10,143,411.48 : x
  2. Step 2: Convert to fraction form
    18,517,707.21/25,553,342.55 = 10,143,411.48/x
  3. Step 3: Cross multiply
    18,517,707.21x = 25,553,342.55 × 10,143,411.48
  4. Step 4: Simplify right side
    18,517,707.21x = 259,198,068,174,042.50
  5. Step 5: Solve for x
    x = 259,198,068,174,042.50/18,517,707.21
  6. Step 6: Final answer
    x = 13,997,308.91

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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.