Home / 18,887,629.20-28,331,443.80-6,109,425.60

Finding the Fourth Proportional to 18,887,629.20, 28,331,443.80 and 6,109,425.60

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Solution

The fourth proportional to 18,887,629.20, 28,331,443.80 and 6,109,425.60 is: 9,164,138.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,887,629.20 : 28,331,443.80 = 6,109,425.60 : x
  2. Step 2: Convert to fraction form
    18,887,629.20/28,331,443.80 = 6,109,425.60/x
  3. Step 3: Cross multiply
    18,887,629.20x = 28,331,443.80 × 6,109,425.60
  4. Step 4: Simplify right side
    18,887,629.20x = 173,088,848,036,681.28
  5. Step 5: Solve for x
    x = 173,088,848,036,681.28/18,887,629.20
  6. Step 6: Final answer
    x = 9,164,138.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.