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Finding the Fourth Proportional to 635,707,218.40, 954,169,688.40 and 329,219,288.80

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Solution

The fourth proportional to 635,707,218.40, 954,169,688.40 and 329,219,288.80 is: 494,144,249.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,707,218.40 : 954,169,688.40 = 329,219,288.80 : x
  2. Step 2: Convert to fraction form
    635,707,218.40/954,169,688.40 = 329,219,288.80/x
  3. Step 3: Cross multiply
    635,707,218.40x = 954,169,688.40 × 329,219,288.80
  4. Step 4: Simplify right side
    635,707,218.40x = 314,131,066,209,565,632
  5. Step 5: Solve for x
    x = 314,131,066,209,565,632/635,707,218.40
  6. Step 6: Final answer
    x = 494,144,249.30

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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.