Finding the Fourth Proportional to 2,086,985,616.84, 3,130,990,915.68 and 1,038,218,663.88
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Solution
The fourth proportional to 2,086,985,616.84, 3,130,990,915.68 and 1,038,218,663.88 is: 1,557,582,945.89
Step by Step Solution
- Step 1: Write the proportion equation
2,086,985,616.84 : 3,130,990,915.68 = 1,038,218,663.88 : x - Step 2: Convert to fraction form
2,086,985,616.84/3,130,990,915.68 = 1,038,218,663.88/x - Step 3: Cross multiply
2,086,985,616.84x = 3,130,990,915.68 × 1,038,218,663.88 - Step 4: Simplify right side
2,086,985,616.84x = 3,250,653,205,097,707,008 - Step 5: Solve for x
x = 3,250,653,205,097,707,008/2,086,985,616.84 - Step 6: Final answer
x = 1,557,582,945.89
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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.