Home / 290,726,311.42-436,037,688.54-115,834,687.98

Finding the Fourth Proportional to 290,726,311.42, 436,037,688.54 and 115,834,687.98

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Solution

The fourth proportional to 290,726,311.42, 436,037,688.54 and 115,834,687.98 is: 173,731,401.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,726,311.42 : 436,037,688.54 = 115,834,687.98 : x
  2. Step 2: Convert to fraction form
    290,726,311.42/436,037,688.54 = 115,834,687.98/x
  3. Step 3: Cross multiply
    290,726,311.42x = 436,037,688.54 × 115,834,687.98
  4. Step 4: Simplify right side
    290,726,311.42x = 50,508,289,597,916,176
  5. Step 5: Solve for x
    x = 50,508,289,597,916,176/290,726,311.42
  6. Step 6: Final answer
    x = 173,731,401.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.