Home / 352,764,781.43-486,842,667.17-211,641,312.78

Finding the Fourth Proportional to 352,764,781.43, 486,842,667.17 and 211,641,312.78

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Solution

The fourth proportional to 352,764,781.43, 486,842,667.17 and 211,641,312.78 is: 292,081,371.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,764,781.43 : 486,842,667.17 = 211,641,312.78 : x
  2. Step 2: Convert to fraction form
    352,764,781.43/486,842,667.17 = 211,641,312.78/x
  3. Step 3: Cross multiply
    352,764,781.43x = 486,842,667.17 × 211,641,312.78
  4. Step 4: Simplify right side
    352,764,781.43x = 103,036,021,196,117,200
  5. Step 5: Solve for x
    x = 103,036,021,196,117,200/352,764,781.43
  6. Step 6: Final answer
    x = 292,081,371.56

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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.