Finding the Fourth Proportional to 10,985,653.80, 16,478,480.70 and 9,326,773.80
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Solution
The fourth proportional to 10,985,653.80, 16,478,480.70 and 9,326,773.80 is: 13,990,160.70
Step by Step Solution
- Step 1: Write the proportion equation
10,985,653.80 : 16,478,480.70 = 9,326,773.80 : x - Step 2: Convert to fraction form
10,985,653.80/16,478,480.70 = 9,326,773.80/x - Step 3: Cross multiply
10,985,653.80x = 16,478,480.70 × 9,326,773.80 - Step 4: Simplify right side
10,985,653.80x = 153,691,062,056,565.66 - Step 5: Solve for x
x = 153,691,062,056,565.66/10,985,653.80 - Step 6: Final answer
x = 13,990,160.70
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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.