Home / 319,239,871.15-440,550,827.33-172,562,155.15

Finding the Fourth Proportional to 319,239,871.15, 440,550,827.33 and 172,562,155.15

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Solution

The fourth proportional to 319,239,871.15, 440,550,827.33 and 172,562,155.15 is: 238,135,668.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,239,871.15 : 440,550,827.33 = 172,562,155.15 : x
  2. Step 2: Convert to fraction form
    319,239,871.15/440,550,827.33 = 172,562,155.15/x
  3. Step 3: Cross multiply
    319,239,871.15x = 440,550,827.33 × 172,562,155.15
  4. Step 4: Simplify right side
    319,239,871.15x = 76,022,400,217,180,320
  5. Step 5: Solve for x
    x = 76,022,400,217,180,320/319,239,871.15
  6. Step 6: Final answer
    x = 238,135,668.78

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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.