Home / 812,441,396,021.23-1,121,102,483,977.10-478,294,620,166.73

Finding the Fourth Proportional to 812,441,396,021.23, 1,121,102,483,977.10 and 478,294,620,166.73

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Solution

The fourth proportional to 812,441,396,021.23, 1,121,102,483,977.10 and 478,294,620,166.73 is: 660,007,342,520.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,441,396,021.23 : 1,121,102,483,977.10 = 478,294,620,166.73 : x
  2. Step 2: Convert to fraction form
    812,441,396,021.23/1,121,102,483,977.10 = 478,294,620,166.73/x
  3. Step 3: Cross multiply
    812,441,396,021.23x = 1,121,102,483,977.10 × 478,294,620,166.73
  4. Step 4: Simplify right side
    812,441,396,021.23x = 536,217,286,741,804,596,592,640
  5. Step 5: Solve for x
    x = 536,217,286,741,804,596,592,640/812,441,396,021.23
  6. Step 6: Final answer
    x = 660,007,342,520.73

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.