Home / 658,875,387.97-988,388,077.56-238,894,542.82

Finding the Fourth Proportional to 658,875,387.97, 988,388,077.56 and 238,894,542.82

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Solution

The fourth proportional to 658,875,387.97, 988,388,077.56 and 238,894,542.82 is: 358,369,006.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,875,387.97 : 988,388,077.56 = 238,894,542.82 : x
  2. Step 2: Convert to fraction form
    658,875,387.97/988,388,077.56 = 238,894,542.82/x
  3. Step 3: Cross multiply
    658,875,387.97x = 988,388,077.56 × 238,894,542.82
  4. Step 4: Simplify right side
    658,875,387.97x = 236,120,517,917,434,880
  5. Step 5: Solve for x
    x = 236,120,517,917,434,880/658,875,387.97
  6. Step 6: Final answer
    x = 358,369,006.08

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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.