Finding the Fourth Proportional to 28,583,252.80, 39,445,034.80 and 15,530,545.08
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Solution
The fourth proportional to 28,583,252.80, 39,445,034.80 and 15,530,545.08 is: 21,432,231.50
Step by Step Solution
- Step 1: Write the proportion equation
28,583,252.80 : 39,445,034.80 = 15,530,545.08 : x - Step 2: Convert to fraction form
28,583,252.80/39,445,034.80 = 15,530,545.08/x - Step 3: Cross multiply
28,583,252.80x = 39,445,034.80 × 15,530,545.08 - Step 4: Simplify right side
28,583,252.80x = 612,602,891,143,568.75 - Step 5: Solve for x
x = 612,602,891,143,568.75/28,583,252.80 - Step 6: Final answer
x = 21,432,231.50
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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.