Finding the Fourth Proportional to 20,177,719.80, 30,270,516.30 and 8,663,164.80
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Solution
The fourth proportional to 20,177,719.80, 30,270,516.30 and 8,663,164.80 is: 12,996,437.35
Step by Step Solution
- Step 1: Write the proportion equation
20,177,719.80 : 30,270,516.30 = 8,663,164.80 : x - Step 2: Convert to fraction form
20,177,719.80/30,270,516.30 = 8,663,164.80/x - Step 3: Cross multiply
20,177,719.80x = 30,270,516.30 × 8,663,164.80 - Step 4: Simplify right side
20,177,719.80x = 262,238,471,287,986.28 - Step 5: Solve for x
x = 262,238,471,287,986.28/20,177,719.80 - Step 6: Final answer
x = 12,996,437.35
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.