Finding the Fourth Proportional to 68,554,990.01, 94,605,887.25 and 39,186,958.79
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Solution
The fourth proportional to 68,554,990.01, 94,605,887.25 and 39,186,958.79 is: 54,078,003.72
Step by Step Solution
- Step 1: Write the proportion equation
68,554,990.01 : 94,605,887.25 = 39,186,958.79 : x - Step 2: Convert to fraction form
68,554,990.01/94,605,887.25 = 39,186,958.79/x - Step 3: Cross multiply
68,554,990.01x = 94,605,887.25 × 39,186,958.79 - Step 4: Simplify right side
68,554,990.01x = 3,707,317,004,957,136.50 - Step 5: Solve for x
x = 3,707,317,004,957,136.50/68,554,990.01 - Step 6: Final answer
x = 54,078,003.72
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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.