Home / 317,690,147.88-438,364,638.18-178,434,230.76

Finding the Fourth Proportional to 317,690,147.88, 438,364,638.18 and 178,434,230.76

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Solution

The fourth proportional to 317,690,147.88, 438,364,638.18 and 178,434,230.76 is: 246,212,410.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,690,147.88 : 438,364,638.18 = 178,434,230.76 : x
  2. Step 2: Convert to fraction form
    317,690,147.88/438,364,638.18 = 178,434,230.76/x
  3. Step 3: Cross multiply
    317,690,147.88x = 438,364,638.18 × 178,434,230.76
  4. Step 4: Simplify right side
    317,690,147.88x = 78,219,257,006,034,016
  5. Step 5: Solve for x
    x = 78,219,257,006,034,016/317,690,147.88
  6. Step 6: Final answer
    x = 246,212,410.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.