Home / 812,149,517,145.60-1,218,224,275,718.40-435,576,801,837.60

Finding the Fourth Proportional to 812,149,517,145.60, 1,218,224,275,718.40 and 435,576,801,837.60

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Solution

The fourth proportional to 812,149,517,145.60, 1,218,224,275,718.40 and 435,576,801,837.60 is: 653,365,202,756.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,149,517,145.60 : 1,218,224,275,718.40 = 435,576,801,837.60 : x
  2. Step 2: Convert to fraction form
    812,149,517,145.60/1,218,224,275,718.40 = 435,576,801,837.60/x
  3. Step 3: Cross multiply
    812,149,517,145.60x = 1,218,224,275,718.40 × 435,576,801,837.60
  4. Step 4: Simplify right side
    812,149,517,145.60x = 530,630,233,938,347,207,688,192
  5. Step 5: Solve for x
    x = 530,630,233,938,347,207,688,192/812,149,517,145.60
  6. Step 6: Final answer
    x = 653,365,202,756.40

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Double scale
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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.