Finding the Fourth Proportional to 2,655,463.96, 3,968,078.99 and 1,993,880.58
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Solution
The fourth proportional to 2,655,463.96, 3,968,078.99 and 1,993,880.58 is: 2,979,470.16
Step by Step Solution
- Step 1: Write the proportion equation
2,655,463.96 : 3,968,078.99 = 1,993,880.58 : x - Step 2: Convert to fraction form
2,655,463.96/3,968,078.99 = 1,993,880.58/x - Step 3: Cross multiply
2,655,463.96x = 3,968,078.99 × 1,993,880.58 - Step 4: Simplify right side
2,655,463.96x = 7,911,875,638,067.02 - Step 5: Solve for x
x = 7,911,875,638,067.02/2,655,463.96 - Step 6: Final answer
x = 2,979,470.16
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.