Home / 20,674,909.12-31,012,361.70-5,528,446.96

Finding the Fourth Proportional to 20,674,909.12, 31,012,361.70 and 5,528,446.96

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Solution

The fourth proportional to 20,674,909.12, 31,012,361.70 and 5,528,446.96 is: 8,292,669.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,674,909.12 : 31,012,361.70 = 5,528,446.96 : x
  2. Step 2: Convert to fraction form
    20,674,909.12/31,012,361.70 = 5,528,446.96/x
  3. Step 3: Cross multiply
    20,674,909.12x = 31,012,361.70 × 5,528,446.96
  4. Step 4: Simplify right side
    20,674,909.12x = 171,450,196,762,785.44
  5. Step 5: Solve for x
    x = 171,450,196,762,785.44/20,674,909.12
  6. Step 6: Final answer
    x = 8,292,669.91

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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.