Finding the Fourth Proportional to 137,397,331.45, 206,198,166.99 and 55,516,921.69
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Solution
The fourth proportional to 137,397,331.45, 206,198,166.99 and 55,516,921.69 is: 83,316,665.39
Step by Step Solution
- Step 1: Write the proportion equation
137,397,331.45 : 206,198,166.99 = 55,516,921.69 : x - Step 2: Convert to fraction form
137,397,331.45/206,198,166.99 = 55,516,921.69/x - Step 3: Cross multiply
137,397,331.45x = 206,198,166.99 × 55,516,921.69 - Step 4: Simplify right side
137,397,331.45x = 11,447,487,489,405,374 - Step 5: Solve for x
x = 11,447,487,489,405,374/137,397,331.45 - Step 6: Final answer
x = 83,316,665.39
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.