Home / 28,188,223.20-42,282,334.80-18,622,285.20

Finding the Fourth Proportional to 28,188,223.20, 42,282,334.80 and 18,622,285.20

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Solution

The fourth proportional to 28,188,223.20, 42,282,334.80 and 18,622,285.20 is: 27,933,427.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,188,223.20 : 42,282,334.80 = 18,622,285.20 : x
  2. Step 2: Convert to fraction form
    28,188,223.20/42,282,334.80 = 18,622,285.20/x
  3. Step 3: Cross multiply
    28,188,223.20x = 42,282,334.80 × 18,622,285.20
  4. Step 4: Simplify right side
    28,188,223.20x = 787,393,697,567,484.88
  5. Step 5: Solve for x
    x = 787,393,697,567,484.88/28,188,223.20
  6. Step 6: Final answer
    x = 27,933,427.80

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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.