Finding the Fourth Proportional to 7,486,955.60, 10,331,998.70 and 4,049,196.62
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Solution
The fourth proportional to 7,486,955.60, 10,331,998.70 and 4,049,196.62 is: 5,587,891.31
Step by Step Solution
- Step 1: Write the proportion equation
7,486,955.60 : 10,331,998.70 = 4,049,196.62 : x - Step 2: Convert to fraction form
7,486,955.60/10,331,998.70 = 4,049,196.62/x - Step 3: Cross multiply
7,486,955.60x = 10,331,998.70 × 4,049,196.62 - Step 4: Simplify right side
7,486,955.60x = 41,836,294,141,978.42 - Step 5: Solve for x
x = 41,836,294,141,978.42/7,486,955.60 - Step 6: Final answer
x = 5,587,891.31
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1.5x scale
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.