Home / 423,768,752.90-635,310,103.76-132,485,940.80

Finding the Fourth Proportional to 423,768,752.90, 635,310,103.76 and 132,485,940.80

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Solution

The fourth proportional to 423,768,752.90, 635,310,103.76 and 132,485,940.80 is: 198,621,668.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,768,752.90 : 635,310,103.76 = 132,485,940.80 : x
  2. Step 2: Convert to fraction form
    423,768,752.90/635,310,103.76 = 132,485,940.80/x
  3. Step 3: Cross multiply
    423,768,752.90x = 635,310,103.76 × 132,485,940.80
  4. Step 4: Simplify right side
    423,768,752.90x = 84,169,656,796,389,216
  5. Step 5: Solve for x
    x = 84,169,656,796,389,216/423,768,752.90
  6. Step 6: Final answer
    x = 198,621,668.59

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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.