Home / 285,655,055.80-394,204,231.02-155,274,863.80

Finding the Fourth Proportional to 285,655,055.80, 394,204,231.02 and 155,274,863.80

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Solution

The fourth proportional to 285,655,055.80, 394,204,231.02 and 155,274,863.80 is: 214,279,450.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,655,055.80 : 394,204,231.02 = 155,274,863.80 : x
  2. Step 2: Convert to fraction form
    285,655,055.80/394,204,231.02 = 155,274,863.80/x
  3. Step 3: Cross multiply
    285,655,055.80x = 394,204,231.02 × 155,274,863.80
  4. Step 4: Simplify right side
    285,655,055.80x = 61,210,008,281,014,240
  5. Step 5: Solve for x
    x = 61,210,008,281,014,240/285,655,055.80
  6. Step 6: Final answer
    x = 214,279,450.12

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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.