Finding the Fourth Proportional to 71,728,825.20, 98,985,665.88 and 39,133,780.08
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Solution
The fourth proportional to 71,728,825.20, 98,985,665.88 and 39,133,780.08 is: 54,004,554.92
Step by Step Solution
- Step 1: Write the proportion equation
71,728,825.20 : 98,985,665.88 = 39,133,780.08 : x - Step 2: Convert to fraction form
71,728,825.20/98,985,665.88 = 39,133,780.08/x - Step 3: Cross multiply
71,728,825.20x = 98,985,665.88 × 39,133,780.08 - Step 4: Simplify right side
71,728,825.20x = 3,873,683,279,620,279.50 - Step 5: Solve for x
x = 3,873,683,279,620,279.50/71,728,825.20 - Step 6: Final answer
x = 54,004,554.92
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.