Home / 152,178,193.44-209,876,375.09-105,879,053.52

Finding the Fourth Proportional to 152,178,193.44, 209,876,375.09 and 105,879,053.52

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Solution

The fourth proportional to 152,178,193.44, 209,876,375.09 and 105,879,053.52 is: 146,022,971.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,178,193.44 : 209,876,375.09 = 105,879,053.52 : x
  2. Step 2: Convert to fraction form
    152,178,193.44/209,876,375.09 = 105,879,053.52/x
  3. Step 3: Cross multiply
    152,178,193.44x = 209,876,375.09 × 105,879,053.52
  4. Step 4: Simplify right side
    152,178,193.44x = 22,221,511,951,002,400
  5. Step 5: Solve for x
    x = 22,221,511,951,002,400/152,178,193.44
  6. Step 6: Final answer
    x = 146,022,971.15

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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.