Home / 28,019,151.20-42,060,219.60-21,657,605.60

Finding the Fourth Proportional to 28,019,151.20, 42,060,219.60 and 21,657,605.60

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Solution

The fourth proportional to 28,019,151.20, 42,060,219.60 and 21,657,605.60 is: 32,510,750.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,019,151.20 : 42,060,219.60 = 21,657,605.60 : x
  2. Step 2: Convert to fraction form
    28,019,151.20/42,060,219.60 = 21,657,605.60/x
  3. Step 3: Cross multiply
    28,019,151.20x = 42,060,219.60 × 21,657,605.60
  4. Step 4: Simplify right side
    28,019,151.20x = 910,923,647,546,189.88
  5. Step 5: Solve for x
    x = 910,923,647,546,189.88/28,019,151.20
  6. Step 6: Final answer
    x = 32,510,750.99

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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.