Finding the Fourth Proportional to 121,328,747.40, 181,993,121.10 and 115,110,887.70
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Solution
The fourth proportional to 121,328,747.40, 181,993,121.10 and 115,110,887.70 is: 172,666,331.55
Step by Step Solution
- Step 1: Write the proportion equation
121,328,747.40 : 181,993,121.10 = 115,110,887.70 : x - Step 2: Convert to fraction form
121,328,747.40/181,993,121.10 = 115,110,887.70/x - Step 3: Cross multiply
121,328,747.40x = 181,993,121.10 × 115,110,887.70 - Step 4: Simplify right side
121,328,747.40x = 20,949,389,725,114,600 - Step 5: Solve for x
x = 20,949,389,725,114,600/121,328,747.40 - Step 6: Final answer
x = 172,666,331.55
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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.