Finding the Fourth Proportional to 1,170,083,962.10, 1,755,125,943.15 and 393,471,514.10
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Solution
The fourth proportional to 1,170,083,962.10, 1,755,125,943.15 and 393,471,514.10 is: 590,207,271.15
Step by Step Solution
- Step 1: Write the proportion equation
1,170,083,962.10 : 1,755,125,943.15 = 393,471,514.10 : x - Step 2: Convert to fraction form
1,170,083,962.10/1,755,125,943.15 = 393,471,514.10/x - Step 3: Cross multiply
1,170,083,962.10x = 1,755,125,943.15 × 393,471,514.10 - Step 4: Simplify right side
1,170,083,962.10x = 690,592,062,287,421,056 - Step 5: Solve for x
x = 690,592,062,287,421,056/1,170,083,962.10 - Step 6: Final answer
x = 590,207,271.15
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.