Home / 839,341,623.18-1,259,014,796.73-321,930,665.58

Finding the Fourth Proportional to 839,341,623.18, 1,259,014,796.73 and 321,930,665.58

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Solution

The fourth proportional to 839,341,623.18, 1,259,014,796.73 and 321,930,665.58 is: 482,896,904.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,341,623.18 : 1,259,014,796.73 = 321,930,665.58 : x
  2. Step 2: Convert to fraction form
    839,341,623.18/1,259,014,796.73 = 321,930,665.58/x
  3. Step 3: Cross multiply
    839,341,623.18x = 1,259,014,796.73 × 321,930,665.58
  4. Step 4: Simplify right side
    839,341,623.18x = 405,315,471,486,357,312
  5. Step 5: Solve for x
    x = 405,315,471,486,357,312/839,341,623.18
  6. Step 6: Final answer
    x = 482,896,904.30

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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.