Finding the Fourth Proportional to 98,794,518.62, 136,336,301.97 and 54,744,370.12
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Solution
The fourth proportional to 98,794,518.62, 136,336,301.97 and 54,744,370.12 is: 75,547,156.67
Step by Step Solution
- Step 1: Write the proportion equation
98,794,518.62 : 136,336,301.97 = 54,744,370.12 : x - Step 2: Convert to fraction form
98,794,518.62/136,336,301.97 = 54,744,370.12/x - Step 3: Cross multiply
98,794,518.62x = 136,336,301.97 × 54,744,370.12 - Step 4: Simplify right side
98,794,518.62x = 7,463,644,976,111,105 - Step 5: Solve for x
x = 7,463,644,976,111,105/98,794,518.62 - Step 6: Final answer
x = 75,547,156.67
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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.