Home / 165,192,402.30-247,788,603.45-138,318,546.30

Finding the Fourth Proportional to 165,192,402.30, 247,788,603.45 and 138,318,546.30

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Solution

The fourth proportional to 165,192,402.30, 247,788,603.45 and 138,318,546.30 is: 207,477,819.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,192,402.30 : 247,788,603.45 = 138,318,546.30 : x
  2. Step 2: Convert to fraction form
    165,192,402.30/247,788,603.45 = 138,318,546.30/x
  3. Step 3: Cross multiply
    165,192,402.30x = 247,788,603.45 × 138,318,546.30
  4. Step 4: Simplify right side
    165,192,402.30x = 34,273,759,418,911,168
  5. Step 5: Solve for x
    x = 34,273,759,418,911,168/165,192,402.30
  6. Step 6: Final answer
    x = 207,477,819.45

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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.