Home / 139,353,750.57-192,320,430.91-76,640,898.33

Finding the Fourth Proportional to 139,353,750.57, 192,320,430.91 and 76,640,898.33

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Solution

The fourth proportional to 139,353,750.57, 192,320,430.91 and 76,640,898.33 is: 105,771,179.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,353,750.57 : 192,320,430.91 = 76,640,898.33 : x
  2. Step 2: Convert to fraction form
    139,353,750.57/192,320,430.91 = 76,640,898.33/x
  3. Step 3: Cross multiply
    139,353,750.57x = 192,320,430.91 × 76,640,898.33
  4. Step 4: Simplify right side
    139,353,750.57x = 14,739,610,591,963,496
  5. Step 5: Solve for x
    x = 14,739,610,591,963,496/139,353,750.57
  6. Step 6: Final answer
    x = 105,771,179.69

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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.