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Finding the Fourth Proportional to 878,359,654.64, 1,317,542,561.64 and 223,310,751.44

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Solution

The fourth proportional to 878,359,654.64, 1,317,542,561.64 and 223,310,751.44 is: 334,966,910.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,359,654.64 : 1,317,542,561.64 = 223,310,751.44 : x
  2. Step 2: Convert to fraction form
    878,359,654.64/1,317,542,561.64 = 223,310,751.44/x
  3. Step 3: Cross multiply
    878,359,654.64x = 1,317,542,561.64 × 223,310,751.44
  4. Step 4: Simplify right side
    878,359,654.64x = 294,221,419,492,894,336
  5. Step 5: Solve for x
    x = 294,221,419,492,894,336/878,359,654.64
  6. Step 6: Final answer
    x = 334,966,910.13

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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.