Finding the Fourth Proportional to 7,720,515.80, 11,580,773.70 and 2,926,611.80
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Solution
The fourth proportional to 7,720,515.80, 11,580,773.70 and 2,926,611.80 is: 4,389,917.70
Step by Step Solution
- Step 1: Write the proportion equation
7,720,515.80 : 11,580,773.70 = 2,926,611.80 : x - Step 2: Convert to fraction form
7,720,515.80/11,580,773.70 = 2,926,611.80/x - Step 3: Cross multiply
7,720,515.80x = 11,580,773.70 × 2,926,611.80 - Step 4: Simplify right side
7,720,515.80x = 33,892,428,963,549.66 - Step 5: Solve for x
x = 33,892,428,963,549.66/7,720,515.80 - Step 6: Final answer
x = 4,389,917.70
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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.