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Finding the Fourth Proportional to 18,398,883.70, 27,598,325.55 and 6,282,028.90

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Solution

The fourth proportional to 18,398,883.70, 27,598,325.55 and 6,282,028.90 is: 9,423,043.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,398,883.70 : 27,598,325.55 = 6,282,028.90 : x
  2. Step 2: Convert to fraction form
    18,398,883.70/27,598,325.55 = 6,282,028.90/x
  3. Step 3: Cross multiply
    18,398,883.70x = 27,598,325.55 × 6,282,028.90
  4. Step 4: Simplify right side
    18,398,883.70x = 173,373,478,696,708.41
  5. Step 5: Solve for x
    x = 173,373,478,696,708.41/18,398,883.70
  6. Step 6: Final answer
    x = 9,423,043.35

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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.