Home / 631,123,757.21-870,934,078.01-352,667,568.89

Finding the Fourth Proportional to 631,123,757.21, 870,934,078.01 and 352,667,568.89

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Solution

The fourth proportional to 631,123,757.21, 870,934,078.01 and 352,667,568.89 is: 486,671,909.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,123,757.21 : 870,934,078.01 = 352,667,568.89 : x
  2. Step 2: Convert to fraction form
    631,123,757.21/870,934,078.01 = 352,667,568.89/x
  3. Step 3: Cross multiply
    631,123,757.21x = 870,934,078.01 × 352,667,568.89
  4. Step 4: Simplify right side
    631,123,757.21x = 307,150,203,955,240,320
  5. Step 5: Solve for x
    x = 307,150,203,955,240,320/631,123,757.21
  6. Step 6: Final answer
    x = 486,671,909.35

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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.