Home / 656,174,103.69-905,093,593.16-420,852,028.89

Finding the Fourth Proportional to 656,174,103.69, 905,093,593.16 and 420,852,028.89

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Solution

The fourth proportional to 656,174,103.69, 905,093,593.16 and 420,852,028.89 is: 580,502,145.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,174,103.69 : 905,093,593.16 = 420,852,028.89 : x
  2. Step 2: Convert to fraction form
    656,174,103.69/905,093,593.16 = 420,852,028.89/x
  3. Step 3: Cross multiply
    656,174,103.69x = 905,093,593.16 × 420,852,028.89
  4. Step 4: Simplify right side
    656,174,103.69x = 380,910,475,016,726,208
  5. Step 5: Solve for x
    x = 380,910,475,016,726,208/656,174,103.69
  6. Step 6: Final answer
    x = 580,502,145.50

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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.