Home / 13,321,913.44-18,384,685.76-8,164,278.40

Finding the Fourth Proportional to 13,321,913.44, 18,384,685.76 and 8,164,278.40

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Solution

The fourth proportional to 13,321,913.44, 18,384,685.76 and 8,164,278.40 is: 11,266,977.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,321,913.44 : 18,384,685.76 = 8,164,278.40 : x
  2. Step 2: Convert to fraction form
    13,321,913.44/18,384,685.76 = 8,164,278.40/x
  3. Step 3: Cross multiply
    13,321,913.44x = 18,384,685.76 × 8,164,278.40
  4. Step 4: Simplify right side
    13,321,913.44x = 150,097,692,841,155.59
  5. Step 5: Solve for x
    x = 150,097,692,841,155.59/13,321,913.44
  6. Step 6: Final answer
    x = 11,266,977.04

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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.