Home / 318,435,846.15-477,835,787.79-172,881,242.13

Finding the Fourth Proportional to 318,435,846.15, 477,835,787.79 and 172,881,242.13

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Solution

The fourth proportional to 318,435,846.15, 477,835,787.79 and 172,881,242.13 is: 259,420,682.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,435,846.15 : 477,835,787.79 = 172,881,242.13 : x
  2. Step 2: Convert to fraction form
    318,435,846.15/477,835,787.79 = 172,881,242.13/x
  3. Step 3: Cross multiply
    318,435,846.15x = 477,835,787.79 × 172,881,242.13
  4. Step 4: Simplify right side
    318,435,846.15x = 82,608,844,527,302,288
  5. Step 5: Solve for x
    x = 82,608,844,527,302,288/318,435,846.15
  6. Step 6: Final answer
    x = 259,420,682.46

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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.