Finding the Fourth Proportional to 151,516,035.54, 209,092,190.97 and 81,901,416.20
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Solution
The fourth proportional to 151,516,035.54, 209,092,190.97 and 81,901,416.20 is: 113,023,987.82
Step by Step Solution
- Step 1: Write the proportion equation
151,516,035.54 : 209,092,190.97 = 81,901,416.20 : x - Step 2: Convert to fraction form
151,516,035.54/209,092,190.97 = 81,901,416.20/x - Step 3: Cross multiply
151,516,035.54x = 209,092,190.97 × 81,901,416.20 - Step 4: Simplify right side
151,516,035.54x = 17,124,946,556,064,702 - Step 5: Solve for x
x = 17,124,946,556,064,702/151,516,035.54 - Step 6: Final answer
x = 113,023,987.82
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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.