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Finding the Fourth Proportional to 18,173,406.40, 27,236,954.40 and 9,657,822.40

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Solution

The fourth proportional to 18,173,406.40, 27,236,954.40 and 9,657,822.40 is: 14,474,428.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,173,406.40 : 27,236,954.40 = 9,657,822.40 : x
  2. Step 2: Convert to fraction form
    18,173,406.40/27,236,954.40 = 9,657,822.40/x
  3. Step 3: Cross multiply
    18,173,406.40x = 27,236,954.40 × 9,657,822.40
  4. Step 4: Simplify right side
    18,173,406.40x = 263,049,668,312,098.56
  5. Step 5: Solve for x
    x = 263,049,668,312,098.56/18,173,406.40
  6. Step 6: Final answer
    x = 14,474,428.32

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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.