Home / 543,275,979.30-815,020,257.15-232,382,994.30

Finding the Fourth Proportional to 543,275,979.30, 815,020,257.15 and 232,382,994.30

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Solution

The fourth proportional to 543,275,979.30, 815,020,257.15 and 232,382,994.30 is: 348,619,955.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,275,979.30 : 815,020,257.15 = 232,382,994.30 : x
  2. Step 2: Convert to fraction form
    543,275,979.30/815,020,257.15 = 232,382,994.30/x
  3. Step 3: Cross multiply
    543,275,979.30x = 815,020,257.15 × 232,382,994.30
  4. Step 4: Simplify right side
    543,275,979.30x = 189,396,847,771,672,992
  5. Step 5: Solve for x
    x = 189,396,847,771,672,992/543,275,979.30
  6. Step 6: Final answer
    x = 348,619,955.58

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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.