Finding the Fourth Proportional to 20,746,877.94, 31,142,230.65 and 11,656,743.66
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Solution
The fourth proportional to 20,746,877.94, 31,142,230.65 and 11,656,743.66 is: 17,497,427.84
Step by Step Solution
- Step 1: Write the proportion equation
20,746,877.94 : 31,142,230.65 = 11,656,743.66 : x - Step 2: Convert to fraction form
20,746,877.94/31,142,230.65 = 11,656,743.66/x - Step 3: Cross multiply
20,746,877.94x = 31,142,230.65 × 11,656,743.66 - Step 4: Simplify right side
20,746,877.94x = 363,016,999,687,645.19 - Step 5: Solve for x
x = 363,016,999,687,645.19/20,746,877.94 - Step 6: Final answer
x = 17,497,427.84
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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.