Home / 21,428,058.12-29,570,935.04-11,638,693.77

Finding the Fourth Proportional to 21,428,058.12, 29,570,935.04 and 11,638,693.77

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Solution

The fourth proportional to 21,428,058.12, 29,570,935.04 and 11,638,693.77 is: 16,061,514.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,428,058.12 : 29,570,935.04 = 11,638,693.77 : x
  2. Step 2: Convert to fraction form
    21,428,058.12/29,570,935.04 = 11,638,693.77/x
  3. Step 3: Cross multiply
    21,428,058.12x = 29,570,935.04 × 11,638,693.77
  4. Step 4: Simplify right side
    21,428,058.12x = 344,167,057,423,122.69
  5. Step 5: Solve for x
    x = 344,167,057,423,122.69/21,428,058.12
  6. Step 6: Final answer
    x = 16,061,514.09

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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.