Home / 312,162,496.60-430,810,699.26-172,976,917.72

Finding the Fourth Proportional to 312,162,496.60, 430,810,699.26 and 172,976,917.72

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Solution

The fourth proportional to 312,162,496.60, 430,810,699.26 and 172,976,917.72 is: 238,722,805.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,162,496.60 : 430,810,699.26 = 172,976,917.72 : x
  2. Step 2: Convert to fraction form
    312,162,496.60/430,810,699.26 = 172,976,917.72/x
  3. Step 3: Cross multiply
    312,162,496.60x = 430,810,699.26 × 172,976,917.72
  4. Step 4: Simplify right side
    312,162,496.60x = 74,520,306,878,792,688
  5. Step 5: Solve for x
    x = 74,520,306,878,792,688/312,162,496.60
  6. Step 6: Final answer
    x = 238,722,805.24

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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.