Home / 315,022,878.60-472,534,317.90-206,183,761.80

Finding the Fourth Proportional to 315,022,878.60, 472,534,317.90 and 206,183,761.80

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Solution

The fourth proportional to 315,022,878.60, 472,534,317.90 and 206,183,761.80 is: 309,275,642.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,022,878.60 : 472,534,317.90 = 206,183,761.80 : x
  2. Step 2: Convert to fraction form
    315,022,878.60/472,534,317.90 = 206,183,761.80/x
  3. Step 3: Cross multiply
    315,022,878.60x = 472,534,317.90 × 206,183,761.80
  4. Step 4: Simplify right side
    315,022,878.60x = 97,428,903,244,219,072
  5. Step 5: Solve for x
    x = 97,428,903,244,219,072/315,022,878.60
  6. Step 6: Final answer
    x = 309,275,642.70

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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.