Home / 21,793,317.12-30,074,776.20-12,631,274.28

Finding the Fourth Proportional to 21,793,317.12, 30,074,776.20 and 12,631,274.28

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Solution

The fourth proportional to 21,793,317.12, 30,074,776.20 and 12,631,274.28 is: 17,431,157.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,793,317.12 : 30,074,776.20 = 12,631,274.28 : x
  2. Step 2: Convert to fraction form
    21,793,317.12/30,074,776.20 = 12,631,274.28/x
  3. Step 3: Cross multiply
    21,793,317.12x = 30,074,776.20 × 12,631,274.28
  4. Step 4: Simplify right side
    21,793,317.12x = 379,882,747,091,816.12
  5. Step 5: Solve for x
    x = 379,882,747,091,816.12/21,793,317.12
  6. Step 6: Final answer
    x = 17,431,157.68

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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.