Finding the Fourth Proportional to 7,242,945.60, 10,865,730.60 and 3,639,644.40
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Solution
The fourth proportional to 7,242,945.60, 10,865,730.60 and 3,639,644.40 is: 5,460,125.99
Step by Step Solution
- Step 1: Write the proportion equation
7,242,945.60 : 10,865,730.60 = 3,639,644.40 : x - Step 2: Convert to fraction form
7,242,945.60/10,865,730.60 = 3,639,644.40/x - Step 3: Cross multiply
7,242,945.60x = 10,865,730.60 × 3,639,644.40 - Step 4: Simplify right side
7,242,945.60x = 39,547,395,530,198.64 - Step 5: Solve for x
x = 39,547,395,530,198.64/7,242,945.60 - Step 6: Final answer
x = 5,460,125.99
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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.