Home / 812,149,516,809.60-1,218,224,275,214.40-435,576,801,501.60

Finding the Fourth Proportional to 812,149,516,809.60, 1,218,224,275,214.40 and 435,576,801,501.60

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Solution

The fourth proportional to 812,149,516,809.60, 1,218,224,275,214.40 and 435,576,801,501.60 is: 653,365,202,252.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,149,516,809.60 : 1,218,224,275,214.40 = 435,576,801,501.60 : x
  2. Step 2: Convert to fraction form
    812,149,516,809.60/1,218,224,275,214.40 = 435,576,801,501.60/x
  3. Step 3: Cross multiply
    812,149,516,809.60x = 1,218,224,275,214.40 × 435,576,801,501.60
  4. Step 4: Simplify right side
    812,149,516,809.60x = 530,630,233,309,493,195,702,272
  5. Step 5: Solve for x
    x = 530,630,233,309,493,195,702,272/812,149,516,809.60
  6. Step 6: Final answer
    x = 653,365,202,252.40

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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.