Finding the Fourth Proportional to 646,836,722.18, 892,634,680.67 and 368,404,153.46
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Solution
The fourth proportional to 646,836,722.18, 892,634,680.67 and 368,404,153.46 is: 508,397,734.09
Step by Step Solution
- Step 1: Write the proportion equation
646,836,722.18 : 892,634,680.67 = 368,404,153.46 : x - Step 2: Convert to fraction form
646,836,722.18/892,634,680.67 = 368,404,153.46/x - Step 3: Cross multiply
646,836,722.18x = 892,634,680.67 × 368,404,153.46 - Step 4: Simplify right side
646,836,722.18x = 328,850,323,881,268,736 - Step 5: Solve for x
x = 328,850,323,881,268,736/646,836,722.18 - Step 6: Final answer
x = 508,397,734.09
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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.