Finding the Fourth Proportional to 7,639,972.50, 10,544,659.74 and 4,378,972.94
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Solution
The fourth proportional to 7,639,972.50, 10,544,659.74 and 4,378,972.94 is: 6,043,841.08
Step by Step Solution
- Step 1: Write the proportion equation
7,639,972.50 : 10,544,659.74 = 4,378,972.94 : x - Step 2: Convert to fraction form
7,639,972.50/10,544,659.74 = 4,378,972.94/x - Step 3: Cross multiply
7,639,972.50x = 10,544,659.74 × 4,378,972.94 - Step 4: Simplify right side
7,639,972.50x = 46,174,779,610,244.13 - Step 5: Solve for x
x = 46,174,779,610,244.13/7,639,972.50 - Step 6: Final answer
x = 6,043,841.08
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.