Finding the Fourth Proportional to 20,386,655.22, 28,133,576.04 and 11,219,297.97
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Solution
The fourth proportional to 20,386,655.22, 28,133,576.04 and 11,219,297.97 is: 15,482,626.71
Step by Step Solution
- Step 1: Write the proportion equation
20,386,655.22 : 28,133,576.04 = 11,219,297.97 : x - Step 2: Convert to fraction form
20,386,655.22/28,133,576.04 = 11,219,297.97/x - Step 3: Cross multiply
20,386,655.22x = 28,133,576.04 × 11,219,297.97 - Step 4: Simplify right side
20,386,655.22x = 315,638,972,554,412.62 - Step 5: Solve for x
x = 315,638,972,554,412.62/20,386,655.22 - Step 6: Final answer
x = 15,482,626.71
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.