Finding the Fourth Proportional to 1,264,207,466,008.70, 1,744,307,288,778.20 and 715,498,770,738.59
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Solution
The fourth proportional to 1,264,207,466,008.70, 1,744,307,288,778.20 and 715,498,770,738.59 is: 987,219,071,606.54
Step by Step Solution
- Step 1: Write the proportion equation
1,264,207,466,008.70 : 1,744,307,288,778.20 = 715,498,770,738.59 : x - Step 2: Convert to fraction form
1,264,207,466,008.70/1,744,307,288,778.20 = 715,498,770,738.59/x - Step 3: Cross multiply
1,264,207,466,008.70x = 1,744,307,288,778.20 × 715,498,770,738.59 - Step 4: Simplify right side
1,264,207,466,008.70x = 1,248,049,720,911,164,621,193,216 - Step 5: Solve for x
x = 1,248,049,720,911,164,621,193,216/1,264,207,466,008.70 - Step 6: Final answer
x = 987,219,071,606.54
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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.