Home / 113,385,401.55-156,388,314.83-85,509,286.68

Finding the Fourth Proportional to 113,385,401.55, 156,388,314.83 and 85,509,286.68

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Solution

The fourth proportional to 113,385,401.55, 156,388,314.83 and 85,509,286.68 is: 117,939,814.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,385,401.55 : 156,388,314.83 = 85,509,286.68 : x
  2. Step 2: Convert to fraction form
    113,385,401.55/156,388,314.83 = 85,509,286.68/x
  3. Step 3: Cross multiply
    113,385,401.55x = 156,388,314.83 × 85,509,286.68
  4. Step 4: Simplify right side
    113,385,401.55x = 13,372,653,246,414,340
  5. Step 5: Solve for x
    x = 13,372,653,246,414,340/113,385,401.55
  6. Step 6: Final answer
    x = 117,939,814.68

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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.