Home / 133,037,812.70-199,556,719.05-72,571,636.70

Finding the Fourth Proportional to 133,037,812.70, 199,556,719.05 and 72,571,636.70

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Solution

The fourth proportional to 133,037,812.70, 199,556,719.05 and 72,571,636.70 is: 108,857,455.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,037,812.70 : 199,556,719.05 = 72,571,636.70 : x
  2. Step 2: Convert to fraction form
    133,037,812.70/199,556,719.05 = 72,571,636.70/x
  3. Step 3: Cross multiply
    133,037,812.70x = 199,556,719.05 × 72,571,636.70
  4. Step 4: Simplify right side
    133,037,812.70x = 14,482,157,715,940,570
  5. Step 5: Solve for x
    x = 14,482,157,715,940,570/133,037,812.70
  6. Step 6: Final answer
    x = 108,857,455.05

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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.