Finding the Fourth Proportional to 11,687,517.84, 16,128,465.12 and 6,530,921.76
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Solution
The fourth proportional to 11,687,517.84, 16,128,465.12 and 6,530,921.76 is: 9,012,499.08
Step by Step Solution
- Step 1: Write the proportion equation
11,687,517.84 : 16,128,465.12 = 6,530,921.76 : x - Step 2: Convert to fraction form
11,687,517.84/16,128,465.12 = 6,530,921.76/x - Step 3: Cross multiply
11,687,517.84x = 16,128,465.12 × 6,530,921.76 - Step 4: Simplify right side
11,687,517.84x = 105,333,743,807,609 - Step 5: Solve for x
x = 105,333,743,807,609/11,687,517.84 - Step 6: Final answer
x = 9,012,499.08
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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.