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Finding the Fourth Proportional to 1,099,414,941.90, 1,649,122,412.85 and 663,208,169.10

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Solution

The fourth proportional to 1,099,414,941.90, 1,649,122,412.85 and 663,208,169.10 is: 994,812,253.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,099,414,941.90 : 1,649,122,412.85 = 663,208,169.10 : x
  2. Step 2: Convert to fraction form
    1,099,414,941.90/1,649,122,412.85 = 663,208,169.10/x
  3. Step 3: Cross multiply
    1,099,414,941.90x = 1,649,122,412.85 × 663,208,169.10
  4. Step 4: Simplify right side
    1,099,414,941.90x = 1,093,711,456,048,022,784
  5. Step 5: Solve for x
    x = 1,093,711,456,048,022,784/1,099,414,941.90
  6. Step 6: Final answer
    x = 994,812,253.65

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Half scale
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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.