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Finding the Fourth Proportional to 220,352,542.40, 330,130,682.40 and 188,502,046.40

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Solution

The fourth proportional to 220,352,542.40, 330,130,682.40 and 188,502,046.40 is: 282,412,485.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,352,542.40 : 330,130,682.40 = 188,502,046.40 : x
  2. Step 2: Convert to fraction form
    220,352,542.40/330,130,682.40 = 188,502,046.40/x
  3. Step 3: Cross multiply
    220,352,542.40x = 330,130,682.40 × 188,502,046.40
  4. Step 4: Simplify right side
    220,352,542.40x = 62,230,309,211,828,464
  5. Step 5: Solve for x
    x = 62,230,309,211,828,464/220,352,542.40
  6. Step 6: Final answer
    x = 282,412,485.62

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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.