Finding the Fourth Proportional to 18,727,206.62, 28,090,809.94 and 5,264,034.62
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Solution
The fourth proportional to 18,727,206.62, 28,090,809.94 and 5,264,034.62 is: 7,896,051.93
Step by Step Solution
- Step 1: Write the proportion equation
18,727,206.62 : 28,090,809.94 = 5,264,034.62 : x - Step 2: Convert to fraction form
18,727,206.62/28,090,809.94 = 5,264,034.62/x - Step 3: Cross multiply
18,727,206.62x = 28,090,809.94 × 5,264,034.62 - Step 4: Simplify right side
18,727,206.62x = 147,870,996,028,000.12 - Step 5: Solve for x
x = 147,870,996,028,000.12/18,727,206.62 - Step 6: Final answer
x = 7,896,051.93
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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.