Home / 309,613,998.90-427,171,127.28-175,629,833.10

Finding the Fourth Proportional to 309,613,998.90, 427,171,127.28 and 175,629,833.10

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Solution

The fourth proportional to 309,613,998.90, 427,171,127.28 and 175,629,833.10 is: 242,314,604.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,613,998.90 : 427,171,127.28 = 175,629,833.10 : x
  2. Step 2: Convert to fraction form
    309,613,998.90/427,171,127.28 = 175,629,833.10/x
  3. Step 3: Cross multiply
    309,613,998.90x = 427,171,127.28 × 175,629,833.10
  4. Step 4: Simplify right side
    309,613,998.90x = 75,023,993,789,325,248
  5. Step 5: Solve for x
    x = 75,023,993,789,325,248/309,613,998.90
  6. Step 6: Final answer
    x = 242,314,604.82

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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.