Finding the Fourth Proportional to 1,264,207,466,020.80, 1,744,307,288,795 and 715,498,770,750.80
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Solution
The fourth proportional to 1,264,207,466,020.80, 1,744,307,288,795 and 715,498,770,750.80 is: 987,219,071,623.45
Step by Step Solution
- Step 1: Write the proportion equation
1,264,207,466,020.80 : 1,744,307,288,795 = 715,498,770,750.80 : x - Step 2: Convert to fraction form
1,264,207,466,020.80/1,744,307,288,795 = 715,498,770,750.80/x - Step 3: Cross multiply
1,264,207,466,020.80x = 1,744,307,288,795 × 715,498,770,750.80 - Step 4: Simplify right side
1,264,207,466,020.80x = 1,248,049,720,944,483,366,862,848 - Step 5: Solve for x
x = 1,248,049,720,944,483,366,862,848/1,264,207,466,020.80 - Step 6: Final answer
x = 987,219,071,623.45
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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.