Home / 309,964,959.52-427,735,842.96-170,732,724.64

Finding the Fourth Proportional to 309,964,959.52, 427,735,842.96 and 170,732,724.64

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Solution

The fourth proportional to 309,964,959.52, 427,735,842.96 and 170,732,724.64 is: 235,602,456.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,964,959.52 : 427,735,842.96 = 170,732,724.64 : x
  2. Step 2: Convert to fraction form
    309,964,959.52/427,735,842.96 = 170,732,724.64/x
  3. Step 3: Cross multiply
    309,964,959.52x = 427,735,842.96 × 170,732,724.64
  4. Step 4: Simplify right side
    309,964,959.52x = 73,028,505,894,747,952
  5. Step 5: Solve for x
    x = 73,028,505,894,747,952/309,964,959.52
  6. Step 6: Final answer
    x = 235,602,456.51

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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.