Finding the Fourth Proportional to 18,890,472.35, 28,335,613.42 and 7,377,108.75
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Solution
The fourth proportional to 18,890,472.35, 28,335,613.42 and 7,377,108.75 is: 11,065,625.98
Step by Step Solution
- Step 1: Write the proportion equation
18,890,472.35 : 28,335,613.42 = 7,377,108.75 : x - Step 2: Convert to fraction form
18,890,472.35/28,335,613.42 = 7,377,108.75/x - Step 3: Cross multiply
18,890,472.35x = 28,335,613.42 × 7,377,108.75 - Step 4: Simplify right side
18,890,472.35x = 209,034,901,731,252.91 - Step 5: Solve for x
x = 209,034,901,731,252.91/18,890,472.35 - Step 6: Final answer
x = 11,065,625.98
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.