Finding the Fourth Proportional to 6,515,103.77, 8,991,922.47 and 3,615,426.08
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Solution
The fourth proportional to 6,515,103.77, 8,991,922.47 and 3,615,426.08 is: 4,989,886.91
Step by Step Solution
- Step 1: Write the proportion equation
6,515,103.77 : 8,991,922.47 = 3,615,426.08 : x - Step 2: Convert to fraction form
6,515,103.77/8,991,922.47 = 3,615,426.08/x - Step 3: Cross multiply
6,515,103.77x = 8,991,922.47 × 3,615,426.08 - Step 4: Simplify right side
6,515,103.77x = 32,509,631,007,376.02 - Step 5: Solve for x
x = 32,509,631,007,376.02/6,515,103.77 - Step 6: Final answer
x = 4,989,886.91
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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.