Home / 18,732,939.22-28,101,335.75-7,071,133.65

Finding the Fourth Proportional to 18,732,939.22, 28,101,335.75 and 7,071,133.65

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Solution

The fourth proportional to 18,732,939.22, 28,101,335.75 and 7,071,133.65 is: 10,607,427.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,732,939.22 : 28,101,335.75 = 7,071,133.65 : x
  2. Step 2: Convert to fraction form
    18,732,939.22/28,101,335.75 = 7,071,133.65/x
  3. Step 3: Cross multiply
    18,732,939.22x = 28,101,335.75 × 7,071,133.65
  4. Step 4: Simplify right side
    18,732,939.22x = 198,708,300,831,773
  5. Step 5: Solve for x
    x = 198,708,300,831,773/18,732,939.22
  6. Step 6: Final answer
    x = 10,607,427.83

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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.