Finding the Fourth Proportional to 16,642,486.60, 24,963,729.90 and 13,619,177.80
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Solution
The fourth proportional to 16,642,486.60, 24,963,729.90 and 13,619,177.80 is: 20,428,766.70
Step by Step Solution
- Step 1: Write the proportion equation
16,642,486.60 : 24,963,729.90 = 13,619,177.80 : x - Step 2: Convert to fraction form
16,642,486.60/24,963,729.90 = 13,619,177.80/x - Step 3: Cross multiply
16,642,486.60x = 24,963,729.90 × 13,619,177.80 - Step 4: Simplify right side
16,642,486.60x = 339,985,476,059,276.19 - Step 5: Solve for x
x = 339,985,476,059,276.19/16,642,486.60 - Step 6: Final answer
x = 20,428,766.70
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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.