Home / 18,638,864.16-27,945,961.38-8,924,910

Finding the Fourth Proportional to 18,638,864.16, 27,945,961.38 and 8,924,910

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Solution

The fourth proportional to 18,638,864.16, 27,945,961.38 and 8,924,910 is: 13,381,458.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,638,864.16 : 27,945,961.38 = 8,924,910 : x
  2. Step 2: Convert to fraction form
    18,638,864.16/27,945,961.38 = 8,924,910/x
  3. Step 3: Cross multiply
    18,638,864.16x = 27,945,961.38 × 8,924,910
  4. Step 4: Simplify right side
    18,638,864.16x = 249,415,190,179,975.78
  5. Step 5: Solve for x
    x = 249,415,190,179,975.78/18,638,864.16
  6. Step 6: Final answer
    x = 13,381,458.66

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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.