Finding the Fourth Proportional to 261,120,924.02, 360,335,514.12 and 143,638,805.09
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Solution
The fourth proportional to 261,120,924.02, 360,335,514.12 and 143,638,805.09 is: 198,215,301.49
Step by Step Solution
- Step 1: Write the proportion equation
261,120,924.02 : 360,335,514.12 = 143,638,805.09 : x - Step 2: Convert to fraction form
261,120,924.02/360,335,514.12 = 143,638,805.09/x - Step 3: Cross multiply
261,120,924.02x = 360,335,514.12 × 143,638,805.09 - Step 4: Simplify right side
261,120,924.02x = 51,758,162,679,687,624 - Step 5: Solve for x
x = 51,758,162,679,687,624/261,120,924.02 - Step 6: Final answer
x = 198,215,301.49
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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.