Home / 209,864,307.78-289,613,258.73-117,050,827.14

Finding the Fourth Proportional to 209,864,307.78, 289,613,258.73 and 117,050,827.14

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Solution

The fourth proportional to 209,864,307.78, 289,613,258.73 and 117,050,827.14 is: 161,530,428.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,864,307.78 : 289,613,258.73 = 117,050,827.14 : x
  2. Step 2: Convert to fraction form
    209,864,307.78/289,613,258.73 = 117,050,827.14/x
  3. Step 3: Cross multiply
    209,864,307.78x = 289,613,258.73 × 117,050,827.14
  4. Step 4: Simplify right side
    209,864,307.78x = 33,899,471,485,057,328
  5. Step 5: Solve for x
    x = 33,899,471,485,057,328/209,864,307.78
  6. Step 6: Final answer
    x = 161,530,428.13

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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.