Finding the Fourth Proportional to 18,771,218.64, 28,160,975.16 and 6,803,643.60
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Solution
The fourth proportional to 18,771,218.64, 28,160,975.16 and 6,803,643.60 is: 10,206,968.56
Step by Step Solution
- Step 1: Write the proportion equation
18,771,218.64 : 28,160,975.16 = 6,803,643.60 : x - Step 2: Convert to fraction form
18,771,218.64/28,160,975.16 = 6,803,643.60/x - Step 3: Cross multiply
18,771,218.64x = 28,160,975.16 × 6,803,643.60 - Step 4: Simplify right side
18,771,218.64x = 191,597,238,417,092.97 - Step 5: Solve for x
x = 191,597,238,417,092.97/18,771,218.64 - Step 6: Final answer
x = 10,206,968.56
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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.