Finding the Fourth Proportional to 5,055,633.60, 6,976,815.62 and 2,880,142.08
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Solution
The fourth proportional to 5,055,633.60, 6,976,815.62 and 2,880,142.08 is: 3,974,619.57
Step by Step Solution
- Step 1: Write the proportion equation
5,055,633.60 : 6,976,815.62 = 2,880,142.08 : x - Step 2: Convert to fraction form
5,055,633.60/6,976,815.62 = 2,880,142.08/x - Step 3: Cross multiply
5,055,633.60x = 6,976,815.62 × 2,880,142.08 - Step 4: Simplify right side
5,055,633.60x = 20,094,220,251,563.29 - Step 5: Solve for x
x = 20,094,220,251,563.29/5,055,633.60 - Step 6: Final answer
x = 3,974,619.57
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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.