Home / 15,919,015.32-21,968,315.55-9,043,874.64

Finding the Fourth Proportional to 15,919,015.32, 21,968,315.55 and 9,043,874.64

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Solution

The fourth proportional to 15,919,015.32, 21,968,315.55 and 9,043,874.64 is: 12,480,589.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,919,015.32 : 21,968,315.55 = 9,043,874.64 : x
  2. Step 2: Convert to fraction form
    15,919,015.32/21,968,315.55 = 9,043,874.64/x
  3. Step 3: Cross multiply
    15,919,015.32x = 21,968,315.55 × 9,043,874.64
  4. Step 4: Simplify right side
    15,919,015.32x = 198,678,691,886,162.66
  5. Step 5: Solve for x
    x = 198,678,691,886,162.66/15,919,015.32
  6. Step 6: Final answer
    x = 12,480,589.28

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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.