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Finding the Fourth Proportional to 268,646,978.80, 402,298,621.80 and 214,899,266.80

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Solution

The fourth proportional to 268,646,978.80, 402,298,621.80 and 214,899,266.80 is: 321,811,468.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,646,978.80 : 402,298,621.80 = 214,899,266.80 : x
  2. Step 2: Convert to fraction form
    268,646,978.80/402,298,621.80 = 214,899,266.80/x
  3. Step 3: Cross multiply
    268,646,978.80x = 402,298,621.80 × 214,899,266.80
  4. Step 4: Simplify right side
    268,646,978.80x = 86,453,678,859,470,496
  5. Step 5: Solve for x
    x = 86,453,678,859,470,496/268,646,978.80
  6. Step 6: Final answer
    x = 321,811,468.89

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Why These Related Problems?

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