Finding the Fourth Proportional to 18,783,352.18, 28,187,654.55 and 6,652,772.74
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Solution
The fourth proportional to 18,783,352.18, 28,187,654.55 and 6,652,772.74 is: 9,983,631.14
Step by Step Solution
- Step 1: Write the proportion equation
18,783,352.18 : 28,187,654.55 = 6,652,772.74 : x - Step 2: Convert to fraction form
18,783,352.18/28,187,654.55 = 6,652,772.74/x - Step 3: Cross multiply
18,783,352.18x = 28,187,654.55 × 6,652,772.74 - Step 4: Simplify right side
18,783,352.18x = 187,526,059,794,776.97 - Step 5: Solve for x
x = 187,526,059,794,776.97/18,783,352.18 - Step 6: Final answer
x = 9,983,631.14
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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.