Home / 209,864,320.78-289,613,276.68-117,050,840.14

Finding the Fourth Proportional to 209,864,320.78, 289,613,276.68 and 117,050,840.14

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Solution

The fourth proportional to 209,864,320.78, 289,613,276.68 and 117,050,840.14 is: 161,530,446.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,864,320.78 : 289,613,276.68 = 117,050,840.14 : x
  2. Step 2: Convert to fraction form
    209,864,320.78/289,613,276.68 = 117,050,840.14/x
  3. Step 3: Cross multiply
    209,864,320.78x = 289,613,276.68 × 117,050,840.14
  4. Step 4: Simplify right side
    209,864,320.78x = 33,899,477,351,092,272
  5. Step 5: Solve for x
    x = 33,899,477,351,092,272/209,864,320.78
  6. Step 6: Final answer
    x = 161,530,446.08

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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.