Home / 66,427,508.10-99,631,930.95-20,993,895.30

Finding the Fourth Proportional to 66,427,508.10, 99,631,930.95 and 20,993,895.30

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Solution

The fourth proportional to 66,427,508.10, 99,631,930.95 and 20,993,895.30 is: 31,487,893.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,427,508.10 : 99,631,930.95 = 20,993,895.30 : x
  2. Step 2: Convert to fraction form
    66,427,508.10/99,631,930.95 = 20,993,895.30/x
  3. Step 3: Cross multiply
    66,427,508.10x = 99,631,930.95 × 20,993,895.30
  4. Step 4: Simplify right side
    66,427,508.10x = 2,091,662,326,901,129.75
  5. Step 5: Solve for x
    x = 2,091,662,326,901,129.75/66,427,508.10
  6. Step 6: Final answer
    x = 31,487,893.90

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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.