Home / 1,328,604,078.30-1,992,906,117.45-454,915,074.30

Finding the Fourth Proportional to 1,328,604,078.30, 1,992,906,117.45 and 454,915,074.30

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Solution

The fourth proportional to 1,328,604,078.30, 1,992,906,117.45 and 454,915,074.30 is: 682,372,611.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,604,078.30 : 1,992,906,117.45 = 454,915,074.30 : x
  2. Step 2: Convert to fraction form
    1,328,604,078.30/1,992,906,117.45 = 454,915,074.30/x
  3. Step 3: Cross multiply
    1,328,604,078.30x = 1,992,906,117.45 × 454,915,074.30
  4. Step 4: Simplify right side
    1,328,604,078.30x = 906,603,034,492,691,328
  5. Step 5: Solve for x
    x = 906,603,034,492,691,328/1,328,604,078.30
  6. Step 6: Final answer
    x = 682,372,611.45

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Double scale
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Similar ratio
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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.