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Finding the Fourth Proportional to 418,607,216.31, 627,917,483.28 and 233,040,630.21

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Solution

The fourth proportional to 418,607,216.31, 627,917,483.28 and 233,040,630.21 is: 349,564,652.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,607,216.31 : 627,917,483.28 = 233,040,630.21 : x
  2. Step 2: Convert to fraction form
    418,607,216.31/627,917,483.28 = 233,040,630.21/x
  3. Step 3: Cross multiply
    418,607,216.31x = 627,917,483.28 × 233,040,630.21
  4. Step 4: Simplify right side
    418,607,216.31x = 146,330,286,019,143,552
  5. Step 5: Solve for x
    x = 146,330,286,019,143,552/418,607,216.31
  6. Step 6: Final answer
    x = 349,564,652.30

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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.