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Finding the Fourth Proportional to 627,446,603.85, 939,352,418.91 and 472,652,330.42

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Solution

The fourth proportional to 627,446,603.85, 939,352,418.91 and 472,652,330.42 is: 707,609,392.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,446,603.85 : 939,352,418.91 = 472,652,330.42 : x
  2. Step 2: Convert to fraction form
    627,446,603.85/939,352,418.91 = 472,652,330.42/x
  3. Step 3: Cross multiply
    627,446,603.85x = 939,352,418.91 × 472,652,330.42
  4. Step 4: Simplify right side
    627,446,603.85x = 443,987,109,878,778,816
  5. Step 5: Solve for x
    x = 443,987,109,878,778,816/627,446,603.85
  6. Step 6: Final answer
    x = 707,609,392.03

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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.