Home / 66,427,506.60-99,631,928.70-20,993,893.80

Finding the Fourth Proportional to 66,427,506.60, 99,631,928.70 and 20,993,893.80

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Solution

The fourth proportional to 66,427,506.60, 99,631,928.70 and 20,993,893.80 is: 31,487,891.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,427,506.60 : 99,631,928.70 = 20,993,893.80 : x
  2. Step 2: Convert to fraction form
    66,427,506.60/99,631,928.70 = 20,993,893.80/x
  3. Step 3: Cross multiply
    66,427,506.60x = 99,631,928.70 × 20,993,893.80
  4. Step 4: Simplify right side
    66,427,506.60x = 2,091,662,130,216,972.25
  5. Step 5: Solve for x
    x = 2,091,662,130,216,972.25/66,427,506.60
  6. Step 6: Final answer
    x = 31,487,891.65

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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.