Home / 21,167,997.10-31,751,995.65-18,144,688.30

Finding the Fourth Proportional to 21,167,997.10, 31,751,995.65 and 18,144,688.30

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Solution

The fourth proportional to 21,167,997.10, 31,751,995.65 and 18,144,688.30 is: 27,217,032.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,167,997.10 : 31,751,995.65 = 18,144,688.30 : x
  2. Step 2: Convert to fraction form
    21,167,997.10/31,751,995.65 = 18,144,688.30/x
  3. Step 3: Cross multiply
    21,167,997.10x = 31,751,995.65 × 18,144,688.30
  4. Step 4: Simplify right side
    21,167,997.10x = 576,130,063,972,205.88
  5. Step 5: Solve for x
    x = 576,130,063,972,205.88/21,167,997.10
  6. Step 6: Final answer
    x = 27,217,032.45

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Similar ratio
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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.