Home / 139,318,178.12-192,259,208.82-76,595,343.32

Finding the Fourth Proportional to 139,318,178.12, 192,259,208.82 and 76,595,343.32

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Solution

The fourth proportional to 139,318,178.12, 192,259,208.82 and 76,595,343.32 is: 105,701,641.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,318,178.12 : 192,259,208.82 = 76,595,343.32 : x
  2. Step 2: Convert to fraction form
    139,318,178.12/192,259,208.82 = 76,595,343.32/x
  3. Step 3: Cross multiply
    139,318,178.12x = 192,259,208.82 × 76,595,343.32
  4. Step 4: Simplify right side
    139,318,178.12x = 14,726,160,105,999,470
  5. Step 5: Solve for x
    x = 14,726,160,105,999,470/139,318,178.12
  6. Step 6: Final answer
    x = 105,701,641.41

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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.