Home / 21,920,991.46-30,251,025.66-12,132,110.68

Finding the Fourth Proportional to 21,920,991.46, 30,251,025.66 and 12,132,110.68

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Solution

The fourth proportional to 21,920,991.46, 30,251,025.66 and 12,132,110.68 is: 16,742,344.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,920,991.46 : 30,251,025.66 = 12,132,110.68 : x
  2. Step 2: Convert to fraction form
    21,920,991.46/30,251,025.66 = 12,132,110.68/x
  3. Step 3: Cross multiply
    21,920,991.46x = 30,251,025.66 × 12,132,110.68
  4. Step 4: Simplify right side
    21,920,991.46x = 367,008,791,490,640.06
  5. Step 5: Solve for x
    x = 367,008,791,490,640.06/21,920,991.46
  6. Step 6: Final answer
    x = 16,742,344.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.