Home / 139,724,503.76-192,815,293.32-80,195,598.20

Finding the Fourth Proportional to 139,724,503.76, 192,815,293.32 and 80,195,598.20

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Solution

The fourth proportional to 139,724,503.76, 192,815,293.32 and 80,195,598.20 is: 110,667,330.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,724,503.76 : 192,815,293.32 = 80,195,598.20 : x
  2. Step 2: Convert to fraction form
    139,724,503.76/192,815,293.32 = 80,195,598.20/x
  3. Step 3: Cross multiply
    139,724,503.76x = 192,815,293.32 × 80,195,598.20
  4. Step 4: Simplify right side
    139,724,503.76x = 15,462,937,789,905,864
  5. Step 5: Solve for x
    x = 15,462,937,789,905,864/139,724,503.76
  6. Step 6: Final answer
    x = 110,667,330.17

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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.