Home / 139,559,885.36-192,592,650.60-77,678,895.44

Finding the Fourth Proportional to 139,559,885.36, 192,592,650.60 and 77,678,895.44

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Solution

The fourth proportional to 139,559,885.36, 192,592,650.60 and 77,678,895.44 is: 107,196,880.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,559,885.36 : 192,592,650.60 = 77,678,895.44 : x
  2. Step 2: Convert to fraction form
    139,559,885.36/192,592,650.60 = 77,678,895.44/x
  3. Step 3: Cross multiply
    139,559,885.36x = 192,592,650.60 × 77,678,895.44
  4. Step 4: Simplify right side
    139,559,885.36x = 14,960,384,368,469,852
  5. Step 5: Solve for x
    x = 14,960,384,368,469,852/139,559,885.36
  6. Step 6: Final answer
    x = 107,196,880.61

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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.