Finding the Fourth Proportional to 66,802,884.96, 92,186,416.80 and 39,302,581.44
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Solution
The fourth proportional to 66,802,884.96, 92,186,416.80 and 39,302,581.44 is: 54,236,641.97
Step by Step Solution
- Step 1: Write the proportion equation
66,802,884.96 : 92,186,416.80 = 39,302,581.44 : x - Step 2: Convert to fraction form
66,802,884.96/92,186,416.80 = 39,302,581.44/x - Step 3: Cross multiply
66,802,884.96x = 92,186,416.80 × 39,302,581.44 - Step 4: Simplify right side
66,802,884.96x = 3,623,164,153,943,784 - Step 5: Solve for x
x = 3,623,164,153,943,784/66,802,884.96 - Step 6: Final answer
x = 54,236,641.97
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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.