Home / 140,194,656.24-193,467,712.32-78,314,453.52

Finding the Fourth Proportional to 140,194,656.24, 193,467,712.32 and 78,314,453.52

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Solution

The fourth proportional to 140,194,656.24, 193,467,712.32 and 78,314,453.52 is: 108,073,435.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,194,656.24 : 193,467,712.32 = 78,314,453.52 : x
  2. Step 2: Convert to fraction form
    140,194,656.24/193,467,712.32 = 78,314,453.52/x
  3. Step 3: Cross multiply
    140,194,656.24x = 193,467,712.32 × 78,314,453.52
  4. Step 4: Simplify right side
    140,194,656.24x = 15,151,318,164,105,370
  5. Step 5: Solve for x
    x = 15,151,318,164,105,370/140,194,656.24
  6. Step 6: Final answer
    x = 108,073,435.68

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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.