Finding the Fourth Proportional to 7,261,660.80, 10,916,110.80 and 5,146,394.40
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Solution
The fourth proportional to 7,261,660.80, 10,916,110.80 and 5,146,394.40 is: 7,736,330.99
Step by Step Solution
- Step 1: Write the proportion equation
7,261,660.80 : 10,916,110.80 = 5,146,394.40 : x - Step 2: Convert to fraction form
7,261,660.80/10,916,110.80 = 5,146,394.40/x - Step 3: Cross multiply
7,261,660.80x = 10,916,110.80 × 5,146,394.40 - Step 4: Simplify right side
7,261,660.80x = 56,178,611,490,899.53 - Step 5: Solve for x
x = 56,178,611,490,899.53/7,261,660.80 - Step 6: Final answer
x = 7,736,330.99
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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.