Home / 21,257,656.64-29,336,527.57-11,968,418.57

Finding the Fourth Proportional to 21,257,656.64, 29,336,527.57 and 11,968,418.57

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Solution

The fourth proportional to 21,257,656.64, 29,336,527.57 and 11,968,418.57 is: 16,516,958.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,257,656.64 : 29,336,527.57 = 11,968,418.57 : x
  2. Step 2: Convert to fraction form
    21,257,656.64/29,336,527.57 = 11,968,418.57/x
  3. Step 3: Cross multiply
    21,257,656.64x = 29,336,527.57 × 11,968,418.57
  4. Step 4: Simplify right side
    21,257,656.64x = 351,111,841,184,682.50
  5. Step 5: Solve for x
    x = 351,111,841,184,682.50/21,257,656.64
  6. Step 6: Final answer
    x = 16,516,958.90

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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.