Finding the Fourth Proportional to 18,851,939.63, 28,251,549.58 and 10,197,356.99
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Solution
The fourth proportional to 18,851,939.63, 28,251,549.58 and 10,197,356.99 is: 15,281,776.95
Step by Step Solution
- Step 1: Write the proportion equation
18,851,939.63 : 28,251,549.58 = 10,197,356.99 : x - Step 2: Convert to fraction form
18,851,939.63/28,251,549.58 = 10,197,356.99/x - Step 3: Cross multiply
18,851,939.63x = 28,251,549.58 × 10,197,356.99 - Step 4: Simplify right side
18,851,939.63x = 288,091,136,587,944.56 - Step 5: Solve for x
x = 288,091,136,587,944.56/18,851,939.63 - Step 6: Final answer
x = 15,281,776.95
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.