Finding the Fourth Proportional to 101,187,841.33, 139,639,266.12 and 54,778,093.75
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Solution
The fourth proportional to 101,187,841.33, 139,639,266.12 and 54,778,093.75 is: 75,593,793.78
Step by Step Solution
- Step 1: Write the proportion equation
101,187,841.33 : 139,639,266.12 = 54,778,093.75 : x - Step 2: Convert to fraction form
101,187,841.33/139,639,266.12 = 54,778,093.75/x - Step 3: Cross multiply
101,187,841.33x = 139,639,266.12 × 54,778,093.75 - Step 4: Simplify right side
101,187,841.33x = 7,649,172,810,702,559 - Step 5: Solve for x
x = 7,649,172,810,702,559/101,187,841.33 - Step 6: Final answer
x = 75,593,793.78
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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.