Home / 311,884,341.90-430,265,287.68-188,056,226.94

Finding the Fourth Proportional to 311,884,341.90, 430,265,287.68 and 188,056,226.94

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Solution

The fourth proportional to 311,884,341.90, 430,265,287.68 and 188,056,226.94 is: 259,436,129.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,884,341.90 : 430,265,287.68 = 188,056,226.94 : x
  2. Step 2: Convert to fraction form
    311,884,341.90/430,265,287.68 = 188,056,226.94/x
  3. Step 3: Cross multiply
    311,884,341.90x = 430,265,287.68 × 188,056,226.94
  4. Step 4: Simplify right side
    311,884,341.90x = 80,914,066,584,354,464
  5. Step 5: Solve for x
    x = 80,914,066,584,354,464/311,884,341.90
  6. Step 6: Final answer
    x = 259,436,129.72

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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.