Home / 18,145,989.90-27,218,984.85-6,178,725.90

Finding the Fourth Proportional to 18,145,989.90, 27,218,984.85 and 6,178,725.90

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Solution

The fourth proportional to 18,145,989.90, 27,218,984.85 and 6,178,725.90 is: 9,268,088.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,145,989.90 : 27,218,984.85 = 6,178,725.90 : x
  2. Step 2: Convert to fraction form
    18,145,989.90/27,218,984.85 = 6,178,725.90/x
  3. Step 3: Cross multiply
    18,145,989.90x = 27,218,984.85 × 6,178,725.90
  4. Step 4: Simplify right side
    18,145,989.90x = 168,178,646,664,402.62
  5. Step 5: Solve for x
    x = 168,178,646,664,402.62/18,145,989.90
  6. Step 6: Final answer
    x = 9,268,088.85

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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.