Home / 839,341,620.93-1,259,014,793.36-321,930,663.33

Finding the Fourth Proportional to 839,341,620.93, 1,259,014,793.36 and 321,930,663.33

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Solution

The fourth proportional to 839,341,620.93, 1,259,014,793.36 and 321,930,663.33 is: 482,896,900.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,341,620.93 : 1,259,014,793.36 = 321,930,663.33 : x
  2. Step 2: Convert to fraction form
    839,341,620.93/1,259,014,793.36 = 321,930,663.33/x
  3. Step 3: Cross multiply
    839,341,620.93x = 1,259,014,793.36 × 321,930,663.33
  4. Step 4: Simplify right side
    839,341,620.93x = 405,315,467,567,057,984
  5. Step 5: Solve for x
    x = 405,315,467,567,057,984/839,341,620.93
  6. Step 6: Final answer
    x = 482,896,900.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.