Home / 631,123,756.21-870,934,076.63-352,667,567.89

Finding the Fourth Proportional to 631,123,756.21, 870,934,076.63 and 352,667,567.89

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Solution

The fourth proportional to 631,123,756.21, 870,934,076.63 and 352,667,567.89 is: 486,671,907.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,123,756.21 : 870,934,076.63 = 352,667,567.89 : x
  2. Step 2: Convert to fraction form
    631,123,756.21/870,934,076.63 = 352,667,567.89/x
  3. Step 3: Cross multiply
    631,123,756.21x = 870,934,076.63 × 352,667,567.89
  4. Step 4: Simplify right side
    631,123,756.21x = 307,150,202,593,270,336
  5. Step 5: Solve for x
    x = 307,150,202,593,270,336/631,123,756.21
  6. Step 6: Final answer
    x = 486,671,907.96

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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.