Home / 528,418,380.96-792,313,605.12-200,917,842.72

Finding the Fourth Proportional to 528,418,380.96, 792,313,605.12 and 200,917,842.72

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Solution

The fourth proportional to 528,418,380.96, 792,313,605.12 and 200,917,842.72 is: 301,257,386.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,418,380.96 : 792,313,605.12 = 200,917,842.72 : x
  2. Step 2: Convert to fraction form
    528,418,380.96/792,313,605.12 = 200,917,842.72/x
  3. Step 3: Cross multiply
    528,418,380.96x = 792,313,605.12 × 200,917,842.72
  4. Step 4: Simplify right side
    528,418,380.96x = 159,189,940,298,416,352
  5. Step 5: Solve for x
    x = 159,189,940,298,416,352/528,418,380.96
  6. Step 6: Final answer
    x = 301,257,386.26

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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.