Finding the Fourth Proportional to 158,068,184.77, 218,136,677.57 and 86,539,872.79
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Solution
The fourth proportional to 158,068,184.77, 218,136,677.57 and 86,539,872.79 is: 119,426,438.38
Step by Step Solution
- Step 1: Write the proportion equation
158,068,184.77 : 218,136,677.57 = 86,539,872.79 : x - Step 2: Convert to fraction form
158,068,184.77/218,136,677.57 = 86,539,872.79/x - Step 3: Cross multiply
158,068,184.77x = 218,136,677.57 × 86,539,872.79 - Step 4: Simplify right side
158,068,184.77x = 18,877,520,327,741,048 - Step 5: Solve for x
x = 18,877,520,327,741,048/158,068,184.77 - Step 6: Final answer
x = 119,426,438.38
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1.5x scale
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.