Finding the Fourth Proportional to 8,931,509,511.20, 13,397,264,266.80 and 3,689,375,487.20
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Solution
The fourth proportional to 8,931,509,511.20, 13,397,264,266.80 and 3,689,375,487.20 is: 5,534,063,230.80
Step by Step Solution
- Step 1: Write the proportion equation
8,931,509,511.20 : 13,397,264,266.80 = 3,689,375,487.20 : x - Step 2: Convert to fraction form
8,931,509,511.20/13,397,264,266.80 = 3,689,375,487.20/x - Step 3: Cross multiply
8,931,509,511.20x = 13,397,264,266.80 × 3,689,375,487.20 - Step 4: Simplify right side
8,931,509,511.20x = 49,427,538,381,472,399,360 - Step 5: Solve for x
x = 49,427,538,381,472,399,360/8,931,509,511.20 - Step 6: Final answer
x = 5,534,063,230.80
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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.