Home / 268,646,978.55-402,298,621.43-214,899,266.55

Finding the Fourth Proportional to 268,646,978.55, 402,298,621.43 and 214,899,266.55

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Solution

The fourth proportional to 268,646,978.55, 402,298,621.43 and 214,899,266.55 is: 321,811,468.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,646,978.55 : 402,298,621.43 = 214,899,266.55 : x
  2. Step 2: Convert to fraction form
    268,646,978.55/402,298,621.43 = 214,899,266.55/x
  3. Step 3: Cross multiply
    268,646,978.55x = 402,298,621.43 × 214,899,266.55
  4. Step 4: Simplify right side
    268,646,978.55x = 86,453,678,678,308,624
  5. Step 5: Solve for x
    x = 86,453,678,678,308,624/268,646,978.55
  6. Step 6: Final answer
    x = 321,811,468.51

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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.