Home / 28,188,726.62-38,905,898.27-18,382,145.54

Finding the Fourth Proportional to 28,188,726.62, 38,905,898.27 and 18,382,145.54

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Solution

The fourth proportional to 28,188,726.62, 38,905,898.27 and 18,382,145.54 is: 25,370,918.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,188,726.62 : 38,905,898.27 = 18,382,145.54 : x
  2. Step 2: Convert to fraction form
    28,188,726.62/38,905,898.27 = 18,382,145.54/x
  3. Step 3: Cross multiply
    28,188,726.62x = 38,905,898.27 × 18,382,145.54
  4. Step 4: Simplify right side
    28,188,726.62x = 715,173,884,077,134
  5. Step 5: Solve for x
    x = 715,173,884,077,134/28,188,726.62
  6. Step 6: Final answer
    x = 25,370,918.45

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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.