Home / 672,654,469.10-1,008,981,703.65-309,857,413.10

Finding the Fourth Proportional to 672,654,469.10, 1,008,981,703.65 and 309,857,413.10

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Solution

The fourth proportional to 672,654,469.10, 1,008,981,703.65 and 309,857,413.10 is: 464,786,119.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,654,469.10 : 1,008,981,703.65 = 309,857,413.10 : x
  2. Step 2: Convert to fraction form
    672,654,469.10/1,008,981,703.65 = 309,857,413.10/x
  3. Step 3: Cross multiply
    672,654,469.10x = 1,008,981,703.65 × 309,857,413.10
  4. Step 4: Simplify right side
    672,654,469.10x = 312,640,460,558,219,840
  5. Step 5: Solve for x
    x = 312,640,460,558,219,840/672,654,469.10
  6. Step 6: Final answer
    x = 464,786,119.65

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Double scale
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Similar ratio
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1.5x scale

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.