Home / 631,123,576.90-870,933,829.16-352,667,388.58

Finding the Fourth Proportional to 631,123,576.90, 870,933,829.16 and 352,667,388.58

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Solution

The fourth proportional to 631,123,576.90, 870,933,829.16 and 352,667,388.58 is: 486,671,660.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,123,576.90 : 870,933,829.16 = 352,667,388.58 : x
  2. Step 2: Convert to fraction form
    631,123,576.90/870,933,829.16 = 352,667,388.58/x
  3. Step 3: Cross multiply
    631,123,576.90x = 870,933,829.16 × 352,667,388.58
  4. Step 4: Simplify right side
    631,123,576.90x = 307,149,959,155,837,056
  5. Step 5: Solve for x
    x = 307,149,959,155,837,056/631,123,576.90
  6. Step 6: Final answer
    x = 486,671,660.51

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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.