Home / 287,673,316.40-396,965,172.12-162,218,481.68

Finding the Fourth Proportional to 287,673,316.40, 396,965,172.12 and 162,218,481.68

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Solution

The fourth proportional to 287,673,316.40, 396,965,172.12 and 162,218,481.68 is: 223,847,968.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,673,316.40 : 396,965,172.12 = 162,218,481.68 : x
  2. Step 2: Convert to fraction form
    287,673,316.40/396,965,172.12 = 162,218,481.68/x
  3. Step 3: Cross multiply
    287,673,316.40x = 396,965,172.12 × 162,218,481.68
  4. Step 4: Simplify right side
    287,673,316.40x = 64,395,087,501,146,272
  5. Step 5: Solve for x
    x = 64,395,087,501,146,272/287,673,316.40
  6. Step 6: Final answer
    x = 223,847,968.62

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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.