Finding the Fourth Proportional to 120,690,252.20, 181,035,378.30 and 44,015,781.80
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Solution
The fourth proportional to 120,690,252.20, 181,035,378.30 and 44,015,781.80 is: 66,023,672.70
Step by Step Solution
- Step 1: Write the proportion equation
120,690,252.20 : 181,035,378.30 = 44,015,781.80 : x - Step 2: Convert to fraction form
120,690,252.20/181,035,378.30 = 44,015,781.80/x - Step 3: Cross multiply
120,690,252.20x = 181,035,378.30 × 44,015,781.80 - Step 4: Simplify right side
120,690,252.20x = 7,968,413,709,333,255 - Step 5: Solve for x
x = 7,968,413,709,333,255/120,690,252.20 - Step 6: Final answer
x = 66,023,672.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.