Finding the Fourth Proportional to 66,971,356.96, 92,356,983.12 and 43,786,357.60
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Solution
The fourth proportional to 66,971,356.96, 92,356,983.12 and 43,786,357.60 is: 60,383,663.60
Step by Step Solution
- Step 1: Write the proportion equation
66,971,356.96 : 92,356,983.12 = 43,786,357.60 : x - Step 2: Convert to fraction form
66,971,356.96/92,356,983.12 = 43,786,357.60/x - Step 3: Cross multiply
66,971,356.96x = 92,356,983.12 × 43,786,357.60 - Step 4: Simplify right side
66,971,356.96x = 4,043,975,889,749,484 - Step 5: Solve for x
x = 4,043,975,889,749,484/66,971,356.96 - Step 6: Final answer
x = 60,383,663.60
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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.