Finding the Fourth Proportional to 7,790,632.40, 11,686,612.80 and 2,034,129.80
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Solution
The fourth proportional to 7,790,632.40, 11,686,612.80 and 2,034,129.80 is: 3,051,368.12
Step by Step Solution
- Step 1: Write the proportion equation
7,790,632.40 : 11,686,612.80 = 2,034,129.80 : x - Step 2: Convert to fraction form
7,790,632.40/11,686,612.80 = 2,034,129.80/x - Step 3: Cross multiply
7,790,632.40x = 11,686,612.80 × 2,034,129.80 - Step 4: Simplify right side
7,790,632.40x = 23,772,087,357,541.44 - Step 5: Solve for x
x = 23,772,087,357,541.44/7,790,632.40 - Step 6: Final answer
x = 3,051,368.12
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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.