Home / 214,612,215.30-321,941,942.55-69,021,000.90

Finding the Fourth Proportional to 214,612,215.30, 321,941,942.55 and 69,021,000.90

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Solution

The fourth proportional to 214,612,215.30, 321,941,942.55 and 69,021,000.90 is: 103,539,097.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,612,215.30 : 321,941,942.55 = 69,021,000.90 : x
  2. Step 2: Convert to fraction form
    214,612,215.30/321,941,942.55 = 69,021,000.90/x
  3. Step 3: Cross multiply
    214,612,215.30x = 321,941,942.55 × 69,021,000.90
  4. Step 4: Simplify right side
    214,612,215.30x = 22,220,755,106,491,300
  5. Step 5: Solve for x
    x = 22,220,755,106,491,300/214,612,215.30
  6. Step 6: Final answer
    x = 103,539,097.60

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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.