Home / 21,751,918.56-30,017,048.49-11,962,361.70

Finding the Fourth Proportional to 21,751,918.56, 30,017,048.49 and 11,962,361.70

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Solution

The fourth proportional to 21,751,918.56, 30,017,048.49 and 11,962,361.70 is: 16,507,729.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,751,918.56 : 30,017,048.49 = 11,962,361.70 : x
  2. Step 2: Convert to fraction form
    21,751,918.56/30,017,048.49 = 11,962,361.70/x
  3. Step 3: Cross multiply
    21,751,918.56x = 30,017,048.49 × 11,962,361.70
  4. Step 4: Simplify right side
    21,751,918.56x = 359,074,791,203,818.81
  5. Step 5: Solve for x
    x = 359,074,791,203,818.81/21,751,918.56
  6. Step 6: Final answer
    x = 16,507,729.66

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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.