Home / 309,619,589.22-427,275,103.55-170,390,350.98

Finding the Fourth Proportional to 309,619,589.22, 427,275,103.55 and 170,390,350.98

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Solution

The fourth proportional to 309,619,589.22, 427,275,103.55 and 170,390,350.98 is: 235,138,723.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,619,589.22 : 427,275,103.55 = 170,390,350.98 : x
  2. Step 2: Convert to fraction form
    309,619,589.22/427,275,103.55 = 170,390,350.98/x
  3. Step 3: Cross multiply
    309,619,589.22x = 427,275,103.55 × 170,390,350.98
  4. Step 4: Simplify right side
    309,619,589.22x = 72,803,554,858,048,384
  5. Step 5: Solve for x
    x = 72,803,554,858,048,384/309,619,589.22
  6. Step 6: Final answer
    x = 235,138,723.11

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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.