Home / 312,714,562.80-431,366,802.64-195,035,588.16

Finding the Fourth Proportional to 312,714,562.80, 431,366,802.64 and 195,035,588.16

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Solution

The fourth proportional to 312,714,562.80, 431,366,802.64 and 195,035,588.16 is: 269,037,288.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,714,562.80 : 431,366,802.64 = 195,035,588.16 : x
  2. Step 2: Convert to fraction form
    312,714,562.80/431,366,802.64 = 195,035,588.16/x
  3. Step 3: Cross multiply
    312,714,562.80x = 431,366,802.64 × 195,035,588.16
  4. Step 4: Simplify right side
    312,714,562.80x = 84,131,878,065,591,040
  5. Step 5: Solve for x
    x = 84,131,878,065,591,040/312,714,562.80
  6. Step 6: Final answer
    x = 269,037,288.55

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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.