Home / 272,172,002.70-408,258,004.05-90,419,180.70

Finding the Fourth Proportional to 272,172,002.70, 408,258,004.05 and 90,419,180.70

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Solution

The fourth proportional to 272,172,002.70, 408,258,004.05 and 90,419,180.70 is: 135,628,771.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,172,002.70 : 408,258,004.05 = 90,419,180.70 : x
  2. Step 2: Convert to fraction form
    272,172,002.70/408,258,004.05 = 90,419,180.70/x
  3. Step 3: Cross multiply
    272,172,002.70x = 408,258,004.05 × 90,419,180.70
  4. Step 4: Simplify right side
    272,172,002.70x = 36,914,354,240,418,288
  5. Step 5: Solve for x
    x = 36,914,354,240,418,288/272,172,002.70
  6. Step 6: Final answer
    x = 135,628,771.05

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1.5x scale

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.