Home / 193,135,440.80-289,603,628.40-71,904,490.40

Finding the Fourth Proportional to 193,135,440.80, 289,603,628.40 and 71,904,490.40

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Solution

The fourth proportional to 193,135,440.80, 289,603,628.40 and 71,904,490.40 is: 107,819,679.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,135,440.80 : 289,603,628.40 = 71,904,490.40 : x
  2. Step 2: Convert to fraction form
    193,135,440.80/289,603,628.40 = 71,904,490.40/x
  3. Step 3: Cross multiply
    193,135,440.80x = 289,603,628.40 × 71,904,490.40
  4. Step 4: Simplify right side
    193,135,440.80x = 20,823,801,318,092,968
  5. Step 5: Solve for x
    x = 20,823,801,318,092,968/193,135,440.80
  6. Step 6: Final answer
    x = 107,819,679.45

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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.