Home / 21,629,507,211.14-29,839,211,783.61-13,051,149,011.78

Finding the Fourth Proportional to 21,629,507,211.14, 29,839,211,783.61 and 13,051,149,011.78

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Solution

The fourth proportional to 21,629,507,211.14, 29,839,211,783.61 and 13,051,149,011.78 is: 18,004,848,449.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,629,507,211.14 : 29,839,211,783.61 = 13,051,149,011.78 : x
  2. Step 2: Convert to fraction form
    21,629,507,211.14/29,839,211,783.61 = 13,051,149,011.78/x
  3. Step 3: Cross multiply
    21,629,507,211.14x = 29,839,211,783.61 × 13,051,149,011.78
  4. Step 4: Simplify right side
    21,629,507,211.14x = 389,435,999,381,955,805,184
  5. Step 5: Solve for x
    x = 389,435,999,381,955,805,184/21,629,507,211.14
  6. Step 6: Final answer
    x = 18,004,848,449.87

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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.