Home / 13,103,104.40-18,072,657.60-8,684,839.52

Finding the Fourth Proportional to 13,103,104.40, 18,072,657.60 and 8,684,839.52

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Solution

The fourth proportional to 13,103,104.40, 18,072,657.60 and 8,684,839.52 is: 11,978,698.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,103,104.40 : 18,072,657.60 = 8,684,839.52 : x
  2. Step 2: Convert to fraction form
    13,103,104.40/18,072,657.60 = 8,684,839.52/x
  3. Step 3: Cross multiply
    13,103,104.40x = 18,072,657.60 × 8,684,839.52
  4. Step 4: Simplify right side
    13,103,104.40x = 156,958,130,955,908.34
  5. Step 5: Solve for x
    x = 156,958,130,955,908.34/13,103,104.40
  6. Step 6: Final answer
    x = 11,978,698.04

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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.