Home / 15,159,515.96-20,920,405.74-8,284,287.80

Finding the Fourth Proportional to 15,159,515.96, 20,920,405.74 and 8,284,287.80

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Solution

The fourth proportional to 15,159,515.96, 20,920,405.74 and 8,284,287.80 is: 11,432,466.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,159,515.96 : 20,920,405.74 = 8,284,287.80 : x
  2. Step 2: Convert to fraction form
    15,159,515.96/20,920,405.74 = 8,284,287.80/x
  3. Step 3: Cross multiply
    15,159,515.96x = 20,920,405.74 × 8,284,287.80
  4. Step 4: Simplify right side
    15,159,515.96x = 173,310,662,042,931.97
  5. Step 5: Solve for x
    x = 173,310,662,042,931.97/15,159,515.96
  6. Step 6: Final answer
    x = 11,432,466.74

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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.