Home / 28,180,266.30-42,270,399.45-21,795,101.10

Finding the Fourth Proportional to 28,180,266.30, 42,270,399.45 and 21,795,101.10

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Solution

The fourth proportional to 28,180,266.30, 42,270,399.45 and 21,795,101.10 is: 32,692,651.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,180,266.30 : 42,270,399.45 = 21,795,101.10 : x
  2. Step 2: Convert to fraction form
    28,180,266.30/42,270,399.45 = 21,795,101.10/x
  3. Step 3: Cross multiply
    28,180,266.30x = 42,270,399.45 × 21,795,101.10
  4. Step 4: Simplify right side
    28,180,266.30x = 921,287,629,550,134.50
  5. Step 5: Solve for x
    x = 921,287,629,550,134.50/28,180,266.30
  6. Step 6: Final answer
    x = 32,692,651.65

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1.5x scale

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.