Home / 42,541,268.40-63,811,902.60-21,017,907.90

Finding the Fourth Proportional to 42,541,268.40, 63,811,902.60 and 21,017,907.90

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Solution

The fourth proportional to 42,541,268.40, 63,811,902.60 and 21,017,907.90 is: 31,526,861.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,541,268.40 : 63,811,902.60 = 21,017,907.90 : x
  2. Step 2: Convert to fraction form
    42,541,268.40/63,811,902.60 = 21,017,907.90/x
  3. Step 3: Cross multiply
    42,541,268.40x = 63,811,902.60 × 21,017,907.90
  4. Step 4: Simplify right side
    42,541,268.40x = 1,341,192,691,770,570.50
  5. Step 5: Solve for x
    x = 1,341,192,691,770,570.50/42,541,268.40
  6. Step 6: Final answer
    x = 31,526,861.85

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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.