Finding the Fourth Proportional to 10,916,539.20, 16,374,808.80 and 7,557,307.20
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Solution
The fourth proportional to 10,916,539.20, 16,374,808.80 and 7,557,307.20 is: 11,335,960.80
Step by Step Solution
- Step 1: Write the proportion equation
10,916,539.20 : 16,374,808.80 = 7,557,307.20 : x - Step 2: Convert to fraction form
10,916,539.20/16,374,808.80 = 7,557,307.20/x - Step 3: Cross multiply
10,916,539.20x = 16,374,808.80 × 7,557,307.20 - Step 4: Simplify right side
10,916,539.20x = 123,749,460,442,863.38 - Step 5: Solve for x
x = 123,749,460,442,863.38/10,916,539.20 - Step 6: Final answer
x = 11,335,960.80
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1.5x scale
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.