Finding the Fourth Proportional to 7,858,141.74, 11,787,215.58 and 3,535,142.31
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Solution
The fourth proportional to 7,858,141.74, 11,787,215.58 and 3,535,142.31 is: 5,302,714.80
Step by Step Solution
- Step 1: Write the proportion equation
7,858,141.74 : 11,787,215.58 = 3,535,142.31 : x - Step 2: Convert to fraction form
7,858,141.74/11,787,215.58 = 3,535,142.31/x - Step 3: Cross multiply
7,858,141.74x = 11,787,215.58 × 3,535,142.31 - Step 4: Simplify right side
7,858,141.74x = 41,669,484,513,949.19 - Step 5: Solve for x
x = 41,669,484,513,949.19/7,858,141.74 - Step 6: Final answer
x = 5,302,714.80
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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.