Home / 139,538,828.68-192,563,586.18-77,673,781.96

Finding the Fourth Proportional to 139,538,828.68, 192,563,586.18 and 77,673,781.96

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Solution

The fourth proportional to 139,538,828.68, 192,563,586.18 and 77,673,781.96 is: 107,189,820.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,538,828.68 : 192,563,586.18 = 77,673,781.96 : x
  2. Step 2: Convert to fraction form
    139,538,828.68/192,563,586.18 = 77,673,781.96/x
  3. Step 3: Cross multiply
    139,538,828.68x = 192,563,586.18 × 77,673,781.96
  4. Step 4: Simplify right side
    139,538,828.68x = 14,957,142,006,380,988
  5. Step 5: Solve for x
    x = 14,957,142,006,380,988/139,538,828.68
  6. Step 6: Final answer
    x = 107,189,820.55

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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.