Home / 30,917,986.20-46,376,979.30-20,147,448.60

Finding the Fourth Proportional to 30,917,986.20, 46,376,979.30 and 20,147,448.60

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Solution

The fourth proportional to 30,917,986.20, 46,376,979.30 and 20,147,448.60 is: 30,221,172.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,917,986.20 : 46,376,979.30 = 20,147,448.60 : x
  2. Step 2: Convert to fraction form
    30,917,986.20/46,376,979.30 = 20,147,448.60/x
  3. Step 3: Cross multiply
    30,917,986.20x = 46,376,979.30 × 20,147,448.60
  4. Step 4: Simplify right side
    30,917,986.20x = 934,377,806,670,014
  5. Step 5: Solve for x
    x = 934,377,806,670,014/30,917,986.20
  6. Step 6: Final answer
    x = 30,221,172.90

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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.