Finding the Fourth Proportional to 108,109,874.91, 149,190,887.99 and 58,549,108.80
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Solution
The fourth proportional to 108,109,874.91, 149,190,887.99 and 58,549,108.80 is: 80,797,369.71
Step by Step Solution
- Step 1: Write the proportion equation
108,109,874.91 : 149,190,887.99 = 58,549,108.80 : x - Step 2: Convert to fraction form
108,109,874.91/149,190,887.99 = 58,549,108.80/x - Step 3: Cross multiply
108,109,874.91x = 149,190,887.99 × 58,549,108.80 - Step 4: Simplify right side
108,109,874.91x = 8,734,993,532,602,378 - Step 5: Solve for x
x = 8,734,993,532,602,378/108,109,874.91 - Step 6: Final answer
x = 80,797,369.71
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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.