Home / 21,629,507,210.64-29,839,211,782.92-13,051,149,011.28

Finding the Fourth Proportional to 21,629,507,210.64, 29,839,211,782.92 and 13,051,149,011.28

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Solution

The fourth proportional to 21,629,507,210.64, 29,839,211,782.92 and 13,051,149,011.28 is: 18,004,848,449.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,629,507,210.64 : 29,839,211,782.92 = 13,051,149,011.28 : x
  2. Step 2: Convert to fraction form
    21,629,507,210.64/29,839,211,782.92 = 13,051,149,011.28/x
  3. Step 3: Cross multiply
    21,629,507,210.64x = 29,839,211,782.92 × 13,051,149,011.28
  4. Step 4: Simplify right side
    21,629,507,210.64x = 389,435,999,358,030,905,344
  5. Step 5: Solve for x
    x = 389,435,999,358,030,905,344/21,629,507,210.64
  6. Step 6: Final answer
    x = 18,004,848,449.18

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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.