Home / 21,389,383.72-29,516,971.56-12,221,829.64

Finding the Fourth Proportional to 21,389,383.72, 29,516,971.56 and 12,221,829.64

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Solution

The fourth proportional to 21,389,383.72, 29,516,971.56 and 12,221,829.64 is: 16,865,908.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,389,383.72 : 29,516,971.56 = 12,221,829.64 : x
  2. Step 2: Convert to fraction form
    21,389,383.72/29,516,971.56 = 12,221,829.64/x
  3. Step 3: Cross multiply
    21,389,383.72x = 29,516,971.56 × 12,221,829.64
  4. Step 4: Simplify right side
    21,389,383.72x = 360,751,397,895,045.06
  5. Step 5: Solve for x
    x = 360,751,397,895,045.06/21,389,383.72
  6. Step 6: Final answer
    x = 16,865,908.93

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.