Home / 90,991,850.28-136,487,775.78-30,407,576.28

Finding the Fourth Proportional to 90,991,850.28, 136,487,775.78 and 30,407,576.28

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Solution

The fourth proportional to 90,991,850.28, 136,487,775.78 and 30,407,576.28 is: 45,611,364.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,991,850.28 : 136,487,775.78 = 30,407,576.28 : x
  2. Step 2: Convert to fraction form
    90,991,850.28/136,487,775.78 = 30,407,576.28/x
  3. Step 3: Cross multiply
    90,991,850.28x = 136,487,775.78 × 30,407,576.28
  4. Step 4: Simplify right side
    90,991,850.28x = 4,150,262,453,317,886.50
  5. Step 5: Solve for x
    x = 4,150,262,453,317,886.50/90,991,850.28
  6. Step 6: Final answer
    x = 45,611,364.54

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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.