Home / 397,375,005.04-548,395,565.16-221,174,285.92

Finding the Fourth Proportional to 397,375,005.04, 548,395,565.16 and 221,174,285.92

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Solution

The fourth proportional to 397,375,005.04, 548,395,565.16 and 221,174,285.92 is: 305,230,565.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,375,005.04 : 548,395,565.16 = 221,174,285.92 : x
  2. Step 2: Convert to fraction form
    397,375,005.04/548,395,565.16 = 221,174,285.92/x
  3. Step 3: Cross multiply
    397,375,005.04x = 548,395,565.16 × 221,174,285.92
  4. Step 4: Simplify right side
    397,375,005.04x = 121,290,997,525,957,808
  5. Step 5: Solve for x
    x = 121,290,997,525,957,808/397,375,005.04
  6. Step 6: Final answer
    x = 305,230,565.56

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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.