Home / 305,979,958.80-422,240,024.52-166,747,731.12

Finding the Fourth Proportional to 305,979,958.80, 422,240,024.52 and 166,747,731.12

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Solution

The fourth proportional to 305,979,958.80, 422,240,024.52 and 166,747,731.12 is: 230,105,155.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,979,958.80 : 422,240,024.52 = 166,747,731.12 : x
  2. Step 2: Convert to fraction form
    305,979,958.80/422,240,024.52 = 166,747,731.12/x
  3. Step 3: Cross multiply
    305,979,958.80x = 422,240,024.52 × 166,747,731.12
  4. Step 4: Simplify right side
    305,979,958.80x = 70,407,566,076,763,168
  5. Step 5: Solve for x
    x = 70,407,566,076,763,168/305,979,958.80
  6. Step 6: Final answer
    x = 230,105,155.75

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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.