Home / 231,245,917.32-319,139,547.36-126,844,166.72

Finding the Fourth Proportional to 231,245,917.32, 319,139,547.36 and 126,844,166.72

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Solution

The fourth proportional to 231,245,917.32, 319,139,547.36 and 126,844,166.72 is: 175,056,020.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,245,917.32 : 319,139,547.36 = 126,844,166.72 : x
  2. Step 2: Convert to fraction form
    231,245,917.32/319,139,547.36 = 126,844,166.72/x
  3. Step 3: Cross multiply
    231,245,917.32x = 319,139,547.36 × 126,844,166.72
  4. Step 4: Simplify right side
    231,245,917.32x = 40,480,989,951,517,384
  5. Step 5: Solve for x
    x = 40,480,989,951,517,384/231,245,917.32
  6. Step 6: Final answer
    x = 175,056,020.11

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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.