Finding the Fourth Proportional to 66,160,552.95, 91,288,184.22 and 38,653,166.79
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Solution
The fourth proportional to 66,160,552.95, 91,288,184.22 and 38,653,166.79 is: 53,333,553.81
Step by Step Solution
- Step 1: Write the proportion equation
66,160,552.95 : 91,288,184.22 = 38,653,166.79 : x - Step 2: Convert to fraction form
66,160,552.95/91,288,184.22 = 38,653,166.79/x - Step 3: Cross multiply
66,160,552.95x = 91,288,184.22 × 38,653,166.79 - Step 4: Simplify right side
66,160,552.95x = 3,528,577,410,611,906 - Step 5: Solve for x
x = 3,528,577,410,611,906/66,160,552.95 - Step 6: Final answer
x = 53,333,553.81
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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.