Home / 66,563,391.20-99,795,320.40-28,193,496.80

Finding the Fourth Proportional to 66,563,391.20, 99,795,320.40 and 28,193,496.80

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Solution

The fourth proportional to 66,563,391.20, 99,795,320.40 and 28,193,496.80 is: 42,269,166.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,563,391.20 : 99,795,320.40 = 28,193,496.80 : x
  2. Step 2: Convert to fraction form
    66,563,391.20/99,795,320.40 = 28,193,496.80/x
  3. Step 3: Cross multiply
    66,563,391.20x = 99,795,320.40 × 28,193,496.80
  4. Step 4: Simplify right side
    66,563,391.20x = 2,813,579,046,352,375
  5. Step 5: Solve for x
    x = 2,813,579,046,352,375/66,563,391.20
  6. Step 6: Final answer
    x = 42,269,166.21

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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.