Home / 21,647,178.88-29,873,326.40-13,060,816

Finding the Fourth Proportional to 21,647,178.88, 29,873,326.40 and 13,060,816

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Solution

The fourth proportional to 21,647,178.88, 29,873,326.40 and 13,060,816 is: 18,024,058.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,647,178.88 : 29,873,326.40 = 13,060,816 : x
  2. Step 2: Convert to fraction form
    21,647,178.88/29,873,326.40 = 13,060,816/x
  3. Step 3: Cross multiply
    21,647,178.88x = 29,873,326.40 × 13,060,816
  4. Step 4: Simplify right side
    21,647,178.88x = 390,170,019,418,342.38
  5. Step 5: Solve for x
    x = 390,170,019,418,342.38/21,647,178.88
  6. Step 6: Final answer
    x = 18,024,058.54

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1.5x scale

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.