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Finding the Fourth Proportional to 281,903,728.40, 422,729,621.40 and 109,323,184.40

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Solution

The fourth proportional to 281,903,728.40, 422,729,621.40 and 109,323,184.40 is: 163,935,924.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,903,728.40 : 422,729,621.40 = 109,323,184.40 : x
  2. Step 2: Convert to fraction form
    281,903,728.40/422,729,621.40 = 109,323,184.40/x
  3. Step 3: Cross multiply
    281,903,728.40x = 422,729,621.40 × 109,323,184.40
  4. Step 4: Simplify right side
    281,903,728.40x = 46,214,148,351,654,384
  5. Step 5: Solve for x
    x = 46,214,148,351,654,384/281,903,728.40
  6. Step 6: Final answer
    x = 163,935,924.56

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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.