Finding the Fourth Proportional to 1,055,412,298.38, 1,455,863,853.73 and 658,245,757.95
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Solution
The fourth proportional to 1,055,412,298.38, 1,455,863,853.73 and 658,245,757.95 is: 908,001,742.39
Step by Step Solution
- Step 1: Write the proportion equation
1,055,412,298.38 : 1,455,863,853.73 = 658,245,757.95 : x - Step 2: Convert to fraction form
1,055,412,298.38/1,455,863,853.73 = 658,245,757.95/x - Step 3: Cross multiply
1,055,412,298.38x = 1,455,863,853.73 × 658,245,757.95 - Step 4: Simplify right side
1,055,412,298.38x = 958,316,205,870,511,872 - Step 5: Solve for x
x = 958,316,205,870,511,872/1,055,412,298.38 - Step 6: Final answer
x = 908,001,742.39
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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.