Home / 839,341,615.30-1,259,014,784.91-321,930,657.70

Finding the Fourth Proportional to 839,341,615.30, 1,259,014,784.91 and 321,930,657.70

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Solution

The fourth proportional to 839,341,615.30, 1,259,014,784.91 and 321,930,657.70 is: 482,896,892.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,341,615.30 : 1,259,014,784.91 = 321,930,657.70 : x
  2. Step 2: Convert to fraction form
    839,341,615.30/1,259,014,784.91 = 321,930,657.70/x
  3. Step 3: Cross multiply
    839,341,615.30x = 1,259,014,784.91 × 321,930,657.70
  4. Step 4: Simplify right side
    839,341,615.30x = 405,315,457,755,729,408
  5. Step 5: Solve for x
    x = 405,315,457,755,729,408/839,341,615.30
  6. Step 6: Final answer
    x = 482,896,892.48

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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.