Home / 268,646,651.80-402,298,131.30-214,898,939.80

Finding the Fourth Proportional to 268,646,651.80, 402,298,131.30 and 214,898,939.80

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Solution

The fourth proportional to 268,646,651.80, 402,298,131.30 and 214,898,939.80 is: 321,810,978.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,646,651.80 : 402,298,131.30 = 214,898,939.80 : x
  2. Step 2: Convert to fraction form
    268,646,651.80/402,298,131.30 = 214,898,939.80/x
  3. Step 3: Cross multiply
    268,646,651.80x = 402,298,131.30 × 214,898,939.80
  4. Step 4: Simplify right side
    268,646,651.80x = 86,453,441,899,891,200
  5. Step 5: Solve for x
    x = 86,453,441,899,891,200/268,646,651.80
  6. Step 6: Final answer
    x = 321,810,978.55

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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.