Finding the Fourth Proportional to 18,676,991.63, 25,774,248.45 and 10,528,229.63
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Solution
The fourth proportional to 18,676,991.63, 25,774,248.45 and 10,528,229.63 is: 14,528,956.89
Step by Step Solution
- Step 1: Write the proportion equation
18,676,991.63 : 25,774,248.45 = 10,528,229.63 : x - Step 2: Convert to fraction form
18,676,991.63/25,774,248.45 = 10,528,229.63/x - Step 3: Cross multiply
18,676,991.63x = 25,774,248.45 × 10,528,229.63 - Step 4: Simplify right side
18,676,991.63x = 271,357,206,093,400.31 - Step 5: Solve for x
x = 271,357,206,093,400.31/18,676,991.63 - Step 6: Final answer
x = 14,528,956.89
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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.