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Finding the Fourth Proportional to 1,099,332,281.90, 1,648,998,422.85 and 990,493,165.10

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Solution

The fourth proportional to 1,099,332,281.90, 1,648,998,422.85 and 990,493,165.10 is: 1,485,739,747.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,099,332,281.90 : 1,648,998,422.85 = 990,493,165.10 : x
  2. Step 2: Convert to fraction form
    1,099,332,281.90/1,648,998,422.85 = 990,493,165.10/x
  3. Step 3: Cross multiply
    1,099,332,281.90x = 1,648,998,422.85 × 990,493,165.10
  4. Step 4: Simplify right side
    1,099,332,281.90x = 1,633,321,667,093,604,608
  5. Step 5: Solve for x
    x = 1,633,321,667,093,604,608/1,099,332,281.90
  6. Step 6: Final answer
    x = 1,485,739,747.65

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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.