Home / 12,109,532.21-16,711,490.66-7,400,690.09

Finding the Fourth Proportional to 12,109,532.21, 16,711,490.66 and 7,400,690.09

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Solution

The fourth proportional to 12,109,532.21, 16,711,490.66 and 7,400,690.09 is: 10,213,157.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,109,532.21 : 16,711,490.66 = 7,400,690.09 : x
  2. Step 2: Convert to fraction form
    12,109,532.21/16,711,490.66 = 7,400,690.09/x
  3. Step 3: Cross multiply
    12,109,532.21x = 16,711,490.66 × 7,400,690.09
  4. Step 4: Simplify right side
    12,109,532.21x = 123,676,563,196,028.66
  5. Step 5: Solve for x
    x = 123,676,563,196,028.66/12,109,532.21
  6. Step 6: Final answer
    x = 10,213,157.79

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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.