Home / 1,299,078,046.45-1,948,617,069.68-329,729,662.45

Finding the Fourth Proportional to 1,299,078,046.45, 1,948,617,069.68 and 329,729,662.45

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Solution

The fourth proportional to 1,299,078,046.45, 1,948,617,069.68 and 329,729,662.45 is: 494,594,493.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,078,046.45 : 1,948,617,069.68 = 329,729,662.45 : x
  2. Step 2: Convert to fraction form
    1,299,078,046.45/1,948,617,069.68 = 329,729,662.45/x
  3. Step 3: Cross multiply
    1,299,078,046.45x = 1,948,617,069.68 × 329,729,662.45
  4. Step 4: Simplify right side
    1,299,078,046.45x = 642,516,848,629,894,528
  5. Step 5: Solve for x
    x = 642,516,848,629,894,528/1,299,078,046.45
  6. Step 6: Final answer
    x = 494,594,493.68

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Double scale
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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.