Home / 139,639,082.77-192,701,933.40-80,935,798.42

Finding the Fourth Proportional to 139,639,082.77, 192,701,933.40 and 80,935,798.42

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Solution

The fourth proportional to 139,639,082.77, 192,701,933.40 and 80,935,798.42 is: 111,691,401.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,639,082.77 : 192,701,933.40 = 80,935,798.42 : x
  2. Step 2: Convert to fraction form
    139,639,082.77/192,701,933.40 = 80,935,798.42/x
  3. Step 3: Cross multiply
    139,639,082.77x = 192,701,933.40 × 80,935,798.42
  4. Step 4: Simplify right side
    139,639,082.77x = 15,596,484,836,806,666
  5. Step 5: Solve for x
    x = 15,596,484,836,806,666/139,639,082.77
  6. Step 6: Final answer
    x = 111,691,401.34

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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.