Home / 658,875,387.47-988,388,076.81-238,894,542.32

Finding the Fourth Proportional to 658,875,387.47, 988,388,076.81 and 238,894,542.32

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Solution

The fourth proportional to 658,875,387.47, 988,388,076.81 and 238,894,542.32 is: 358,369,005.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,875,387.47 : 988,388,076.81 = 238,894,542.32 : x
  2. Step 2: Convert to fraction form
    658,875,387.47/988,388,076.81 = 238,894,542.32/x
  3. Step 3: Cross multiply
    658,875,387.47x = 988,388,076.81 × 238,894,542.32
  4. Step 4: Simplify right side
    658,875,387.47x = 236,120,517,244,069,920
  5. Step 5: Solve for x
    x = 236,120,517,244,069,920/658,875,387.47
  6. Step 6: Final answer
    x = 358,369,005.33

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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.