Home / 255,678,727.21-352,743,960.23-209,464,617.85

Finding the Fourth Proportional to 255,678,727.21, 352,743,960.23 and 209,464,617.85

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Solution

The fourth proportional to 255,678,727.21, 352,743,960.23 and 209,464,617.85 is: 288,985,241.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,678,727.21 : 352,743,960.23 = 209,464,617.85 : x
  2. Step 2: Convert to fraction form
    255,678,727.21/352,743,960.23 = 209,464,617.85/x
  3. Step 3: Cross multiply
    255,678,727.21x = 352,743,960.23 × 209,464,617.85
  4. Step 4: Simplify right side
    255,678,727.21x = 73,887,378,828,472,544
  5. Step 5: Solve for x
    x = 73,887,378,828,472,544/255,678,727.21
  6. Step 6: Final answer
    x = 288,985,241.89

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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.