Finding the Fourth Proportional to 15,807,243.35, 21,813,711.48 and 8,931,577.79
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Solution
The fourth proportional to 15,807,243.35, 21,813,711.48 and 8,931,577.79 is: 12,325,416.69
Step by Step Solution
- Step 1: Write the proportion equation
15,807,243.35 : 21,813,711.48 = 8,931,577.79 : x - Step 2: Convert to fraction form
15,807,243.35/21,813,711.48 = 8,931,577.79/x - Step 3: Cross multiply
15,807,243.35x = 21,813,711.48 × 8,931,577.79 - Step 4: Simplify right side
15,807,243.35x = 194,830,861,026,770.31 - Step 5: Solve for x
x = 194,830,861,026,770.31/15,807,243.35 - Step 6: Final answer
x = 12,325,416.69
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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.