Home / 70,324,361.74-105,482,456.97-21,139,152.94

Finding the Fourth Proportional to 70,324,361.74, 105,482,456.97 and 21,139,152.94

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Solution

The fourth proportional to 70,324,361.74, 105,482,456.97 and 21,139,152.94 is: 31,707,501.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,324,361.74 : 105,482,456.97 = 21,139,152.94 : x
  2. Step 2: Convert to fraction form
    70,324,361.74/105,482,456.97 = 21,139,152.94/x
  3. Step 3: Cross multiply
    70,324,361.74x = 105,482,456.97 × 21,139,152.94
  4. Step 4: Simplify right side
    70,324,361.74x = 2,229,809,790,375,799
  5. Step 5: Solve for x
    x = 2,229,809,790,375,799/70,324,361.74
  6. Step 6: Final answer
    x = 31,707,501.29

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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.