Home / 136,207,045.28-187,969,692.32-74,331,369.60

Finding the Fourth Proportional to 136,207,045.28, 187,969,692.32 and 74,331,369.60

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Solution

The fourth proportional to 136,207,045.28, 187,969,692.32 and 74,331,369.60 is: 102,579,456.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,207,045.28 : 187,969,692.32 = 74,331,369.60 : x
  2. Step 2: Convert to fraction form
    136,207,045.28/187,969,692.32 = 74,331,369.60/x
  3. Step 3: Cross multiply
    136,207,045.28x = 187,969,692.32 × 74,331,369.60
  4. Step 4: Simplify right side
    136,207,045.28x = 13,972,044,673,436,200
  5. Step 5: Solve for x
    x = 13,972,044,673,436,200/136,207,045.28
  6. Step 6: Final answer
    x = 102,579,456.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.