Home / 66,415,843.20-99,642,427.20-32,338,300.80

Finding the Fourth Proportional to 66,415,843.20, 99,642,427.20 and 32,338,300.80

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Solution

The fourth proportional to 66,415,843.20, 99,642,427.20 and 32,338,300.80 is: 48,516,538.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,415,843.20 : 99,642,427.20 = 32,338,300.80 : x
  2. Step 2: Convert to fraction form
    66,415,843.20/99,642,427.20 = 32,338,300.80/x
  3. Step 3: Cross multiply
    66,415,843.20x = 99,642,427.20 × 32,338,300.80
  4. Step 4: Simplify right side
    66,415,843.20x = 3,222,266,783,235,702
  5. Step 5: Solve for x
    x = 3,222,266,783,235,702/66,415,843.20
  6. Step 6: Final answer
    x = 48,516,538.04

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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.