Home / 139,538,513-192,563,147.94-77,673,466.19

Finding the Fourth Proportional to 139,538,513, 192,563,147.94 and 77,673,466.19

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Solution

The fourth proportional to 139,538,513, 192,563,147.94 and 77,673,466.19 is: 107,189,383.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,538,513 : 192,563,147.94 = 77,673,466.19 : x
  2. Step 2: Convert to fraction form
    139,538,513/192,563,147.94 = 77,673,466.19/x
  3. Step 3: Cross multiply
    139,538,513x = 192,563,147.94 × 77,673,466.19
  4. Step 4: Simplify right side
    139,538,513x = 14,957,047,160,957,558
  5. Step 5: Solve for x
    x = 14,957,047,160,957,558/139,538,513
  6. Step 6: Final answer
    x = 107,189,383.34

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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.