Home / 18,673,178.68-28,009,820.10-7,162,174.36

Finding the Fourth Proportional to 18,673,178.68, 28,009,820.10 and 7,162,174.36

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Solution

The fourth proportional to 18,673,178.68, 28,009,820.10 and 7,162,174.36 is: 10,743,281.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,673,178.68 : 28,009,820.10 = 7,162,174.36 : x
  2. Step 2: Convert to fraction form
    18,673,178.68/28,009,820.10 = 7,162,174.36/x
  3. Step 3: Cross multiply
    18,673,178.68x = 28,009,820.10 × 7,162,174.36
  4. Step 4: Simplify right side
    18,673,178.68x = 200,611,215,348,432.66
  5. Step 5: Solve for x
    x = 200,611,215,348,432.66/18,673,178.68
  6. Step 6: Final answer
    x = 10,743,281.52

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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.