Finding the Fourth Proportional to 646,836,243.36, 892,634,015.84 and 368,403,674.64
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Solution
The fourth proportional to 646,836,243.36, 892,634,015.84 and 368,403,674.64 is: 508,397,071.00
Step by Step Solution
- Step 1: Write the proportion equation
646,836,243.36 : 892,634,015.84 = 368,403,674.64 : x - Step 2: Convert to fraction form
646,836,243.36/892,634,015.84 = 368,403,674.64/x - Step 3: Cross multiply
646,836,243.36x = 892,634,015.84 × 368,403,674.64 - Step 4: Simplify right side
646,836,243.36x = 328,849,651,542,273,920 - Step 5: Solve for x
x = 328,849,651,542,273,920/646,836,243.36 - Step 6: Final answer
x = 508,397,071.00
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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.