Finding the Fourth Proportional to 6,475,131.20, 9,718,917.60 and 3,283,860.80
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Solution
The fourth proportional to 6,475,131.20, 9,718,917.60 and 3,283,860.80 is: 4,928,946.08
Step by Step Solution
- Step 1: Write the proportion equation
6,475,131.20 : 9,718,917.60 = 3,283,860.80 : x - Step 2: Convert to fraction form
6,475,131.20/9,718,917.60 = 3,283,860.80/x - Step 3: Cross multiply
6,475,131.20x = 9,718,917.60 × 3,283,860.80 - Step 4: Simplify right side
6,475,131.20x = 31,915,572,525,070.08 - Step 5: Solve for x
x = 31,915,572,525,070.08/6,475,131.20 - Step 6: Final answer
x = 4,928,946.08
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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.