Home / 21,406,864.78-29,541,689.67-11,617,393.51

Finding the Fourth Proportional to 21,406,864.78, 29,541,689.67 and 11,617,393.51

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Solution

The fourth proportional to 21,406,864.78, 29,541,689.67 and 11,617,393.51 is: 16,032,120.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,406,864.78 : 29,541,689.67 = 11,617,393.51 : x
  2. Step 2: Convert to fraction form
    21,406,864.78/29,541,689.67 = 11,617,393.51/x
  3. Step 3: Cross multiply
    21,406,864.78x = 29,541,689.67 × 11,617,393.51
  4. Step 4: Simplify right side
    21,406,864.78x = 343,197,433,846,692.06
  5. Step 5: Solve for x
    x = 343,197,433,846,692.06/21,406,864.78
  6. Step 6: Final answer
    x = 16,032,120.41

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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.