Home / 312,714,484.29-431,366,694.78-195,035,509.84

Finding the Fourth Proportional to 312,714,484.29, 431,366,694.78 and 195,035,509.84

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Solution

The fourth proportional to 312,714,484.29, 431,366,694.78 and 195,035,509.84 is: 269,037,180.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,714,484.29 : 431,366,694.78 = 195,035,509.84 : x
  2. Step 2: Convert to fraction form
    312,714,484.29/431,366,694.78 = 195,035,509.84/x
  3. Step 3: Cross multiply
    312,714,484.29x = 431,366,694.78 × 195,035,509.84
  4. Step 4: Simplify right side
    312,714,484.29x = 84,131,823,244,412,960
  5. Step 5: Solve for x
    x = 84,131,823,244,412,960/312,714,484.29
  6. Step 6: Final answer
    x = 269,037,180.79

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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.