Home / 315,235,220.30-472,056,568.05-206,943,533.90

Finding the Fourth Proportional to 315,235,220.30, 472,056,568.05 and 206,943,533.90

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Solution

The fourth proportional to 315,235,220.30, 472,056,568.05 and 206,943,533.90 is: 309,892,575.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,235,220.30 : 472,056,568.05 = 206,943,533.90 : x
  2. Step 2: Convert to fraction form
    315,235,220.30/472,056,568.05 = 206,943,533.90/x
  3. Step 3: Cross multiply
    315,235,220.30x = 472,056,568.05 × 206,943,533.90
  4. Step 4: Simplify right side
    315,235,220.30x = 97,689,054,392,972,832
  5. Step 5: Solve for x
    x = 97,689,054,392,972,832/315,235,220.30
  6. Step 6: Final answer
    x = 309,892,575.77

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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.