Home / 400,704,863.13-601,027,901.42-128,002,409.37

Finding the Fourth Proportional to 400,704,863.13, 601,027,901.42 and 128,002,409.37

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Solution

The fourth proportional to 400,704,863.13, 601,027,901.42 and 128,002,409.37 is: 191,994,224.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,704,863.13 : 601,027,901.42 = 128,002,409.37 : x
  2. Step 2: Convert to fraction form
    400,704,863.13/601,027,901.42 = 128,002,409.37/x
  3. Step 3: Cross multiply
    400,704,863.13x = 601,027,901.42 × 128,002,409.37
  4. Step 4: Simplify right side
    400,704,863.13x = 76,933,019,479,714,832
  5. Step 5: Solve for x
    x = 76,933,019,479,714,832/400,704,863.13
  6. Step 6: Final answer
    x = 191,994,224.57

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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.