Home / 198,904,407.76-298,354,512.12-77,734,810

Finding the Fourth Proportional to 198,904,407.76, 298,354,512.12 and 77,734,810

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Solution

The fourth proportional to 198,904,407.76, 298,354,512.12 and 77,734,810 is: 116,601,394.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,904,407.76 : 298,354,512.12 = 77,734,810 : x
  2. Step 2: Convert to fraction form
    198,904,407.76/298,354,512.12 = 77,734,810/x
  3. Step 3: Cross multiply
    198,904,407.76x = 298,354,512.12 × 77,734,810
  4. Step 4: Simplify right side
    198,904,407.76x = 23,192,531,312,290,896
  5. Step 5: Solve for x
    x = 23,192,531,312,290,896/198,904,407.76
  6. Step 6: Final answer
    x = 116,601,394.48

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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.