Finding the Fourth Proportional to 172,305,201.84, 237,782,696.10 and 93,989,103.63
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Solution
The fourth proportional to 172,305,201.84, 237,782,696.10 and 93,989,103.63 is: 129,705,790.81
Step by Step Solution
- Step 1: Write the proportion equation
172,305,201.84 : 237,782,696.10 = 93,989,103.63 : x - Step 2: Convert to fraction form
172,305,201.84/237,782,696.10 = 93,989,103.63/x - Step 3: Cross multiply
172,305,201.84x = 237,782,696.10 × 93,989,103.63 - Step 4: Simplify right side
172,305,201.84x = 22,348,982,465,163,696 - Step 5: Solve for x
x = 22,348,982,465,163,696/172,305,201.84 - Step 6: Final answer
x = 129,705,790.81
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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.