Home / 18,725,242.72-28,088,388.96-9,148,282.24

Finding the Fourth Proportional to 18,725,242.72, 28,088,388.96 and 9,148,282.24

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Solution

The fourth proportional to 18,725,242.72, 28,088,388.96 and 9,148,282.24 is: 13,722,679.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,725,242.72 : 28,088,388.96 = 9,148,282.24 : x
  2. Step 2: Convert to fraction form
    18,725,242.72/28,088,388.96 = 9,148,282.24/x
  3. Step 3: Cross multiply
    18,725,242.72x = 28,088,388.96 × 9,148,282.24
  4. Step 4: Simplify right side
    18,725,242.72x = 256,960,509,872,980.09
  5. Step 5: Solve for x
    x = 256,960,509,872,980.09/18,725,242.72
  6. Step 6: Final answer
    x = 13,722,679.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.