Finding the Fourth Proportional to 135,332,805.30, 187,100,818.70 and 99,994,874.75
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Solution
The fourth proportional to 135,332,805.30, 187,100,818.70 and 99,994,874.75 is: 138,245,290.12
Step by Step Solution
- Step 1: Write the proportion equation
135,332,805.30 : 187,100,818.70 = 99,994,874.75 : x - Step 2: Convert to fraction form
135,332,805.30/187,100,818.70 = 99,994,874.75/x - Step 3: Cross multiply
135,332,805.30x = 187,100,818.70 × 99,994,874.75 - Step 4: Simplify right side
135,332,805.30x = 18,709,122,931,884,020 - Step 5: Solve for x
x = 18,709,122,931,884,020/135,332,805.30 - Step 6: Final answer
x = 138,245,290.12
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.