Home / 812,149,516,787.85-1,218,224,275,181.80-435,576,801,479.85

Finding the Fourth Proportional to 812,149,516,787.85, 1,218,224,275,181.80 and 435,576,801,479.85

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Solution

The fourth proportional to 812,149,516,787.85, 1,218,224,275,181.80 and 435,576,801,479.85 is: 653,365,202,219.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,149,516,787.85 : 1,218,224,275,181.80 = 435,576,801,479.85 : x
  2. Step 2: Convert to fraction form
    812,149,516,787.85/1,218,224,275,181.80 = 435,576,801,479.85/x
  3. Step 3: Cross multiply
    812,149,516,787.85x = 1,218,224,275,181.80 × 435,576,801,479.85
  4. Step 4: Simplify right side
    812,149,516,787.85x = 530,630,233,268,797,038,395,392
  5. Step 5: Solve for x
    x = 530,630,233,268,797,038,395,392/812,149,516,787.85
  6. Step 6: Final answer
    x = 653,365,202,219.79

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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.