Finding the Fourth Proportional to 346,883,517.06, 478,655,122.83 and 198,214,275.06
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Solution
The fourth proportional to 346,883,517.06, 478,655,122.83 and 198,214,275.06 is: 273,510,482.65
Step by Step Solution
- Step 1: Write the proportion equation
346,883,517.06 : 478,655,122.83 = 198,214,275.06 : x - Step 2: Convert to fraction form
346,883,517.06/478,655,122.83 = 198,214,275.06/x - Step 3: Cross multiply
346,883,517.06x = 478,655,122.83 × 198,214,275.06 - Step 4: Simplify right side
346,883,517.06x = 94,876,278,175,503,696 - Step 5: Solve for x
x = 94,876,278,175,503,696/346,883,517.06 - Step 6: Final answer
x = 273,510,482.65
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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.