Finding the Fourth Proportional to 158,068,183.77, 218,136,676.19 and 86,539,871.79
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Solution
The fourth proportional to 158,068,183.77, 218,136,676.19 and 86,539,871.79 is: 119,426,436.99
Step by Step Solution
- Step 1: Write the proportion equation
158,068,183.77 : 218,136,676.19 = 86,539,871.79 : x - Step 2: Convert to fraction form
158,068,183.77/218,136,676.19 = 86,539,871.79/x - Step 3: Cross multiply
158,068,183.77x = 218,136,676.19 × 86,539,871.79 - Step 4: Simplify right side
158,068,183.77x = 18,877,519,989,746,648 - Step 5: Solve for x
x = 18,877,519,989,746,648/158,068,183.77 - Step 6: Final answer
x = 119,426,436.99
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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.