Finding the Fourth Proportional to 103,968,585.20, 143,471,192.28 and 56,916,638.48
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Solution
The fourth proportional to 103,968,585.20, 143,471,192.28 and 56,916,638.48 is: 78,541,974.65
Step by Step Solution
- Step 1: Write the proportion equation
103,968,585.20 : 143,471,192.28 = 56,916,638.48 : x - Step 2: Convert to fraction form
103,968,585.20/143,471,192.28 = 56,916,638.48/x - Step 3: Cross multiply
103,968,585.20x = 143,471,192.28 × 56,916,638.48 - Step 4: Simplify right side
103,968,585.20x = 8,165,897,983,295,327 - Step 5: Solve for x
x = 8,165,897,983,295,327/103,968,585.20 - Step 6: Final answer
x = 78,541,974.65
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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.