Home / 664,008,412.20-996,012,618.30-654,938,485.80

Finding the Fourth Proportional to 664,008,412.20, 996,012,618.30 and 654,938,485.80

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Solution

The fourth proportional to 664,008,412.20, 996,012,618.30 and 654,938,485.80 is: 982,407,728.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,008,412.20 : 996,012,618.30 = 654,938,485.80 : x
  2. Step 2: Convert to fraction form
    664,008,412.20/996,012,618.30 = 654,938,485.80/x
  3. Step 3: Cross multiply
    664,008,412.20x = 996,012,618.30 × 654,938,485.80
  4. Step 4: Simplify right side
    664,008,412.20x = 652,326,996,067,095,296
  5. Step 5: Solve for x
    x = 652,326,996,067,095,296/664,008,412.20
  6. Step 6: Final answer
    x = 982,407,728.70

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Similar ratio
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1.5x scale

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.