Finding the Fourth Proportional to 102,187,869.19, 140,998,208.29 and 58,719,407.11
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Solution
The fourth proportional to 102,187,869.19, 140,998,208.29 and 58,719,407.11 is: 81,020,685.33
Step by Step Solution
- Step 1: Write the proportion equation
102,187,869.19 : 140,998,208.29 = 58,719,407.11 : x - Step 2: Convert to fraction form
102,187,869.19/140,998,208.29 = 58,719,407.11/x - Step 3: Cross multiply
102,187,869.19x = 140,998,208.29 × 58,719,407.11 - Step 4: Simplify right side
102,187,869.19x = 8,279,331,194,361,086 - Step 5: Solve for x
x = 8,279,331,194,361,086/102,187,869.19 - Step 6: Final answer
x = 81,020,685.33
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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.