Home / 21,406,872.80-29,541,700.72-11,617,401.52

Finding the Fourth Proportional to 21,406,872.80, 29,541,700.72 and 11,617,401.52

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Solution

The fourth proportional to 21,406,872.80, 29,541,700.72 and 11,617,401.52 is: 16,032,131.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,406,872.80 : 29,541,700.72 = 11,617,401.52 : x
  2. Step 2: Convert to fraction form
    21,406,872.80/29,541,700.72 = 11,617,401.52/x
  3. Step 3: Cross multiply
    21,406,872.80x = 29,541,700.72 × 11,617,401.52
  4. Step 4: Simplify right side
    21,406,872.80x = 343,197,798,847,913.06
  5. Step 5: Solve for x
    x = 343,197,798,847,913.06/21,406,872.80
  6. Step 6: Final answer
    x = 16,032,131.46

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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.