Finding the Fourth Proportional to 2,983,142.19, 4,114,977.82 and 2,110,995.75
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Solution
The fourth proportional to 2,983,142.19, 4,114,977.82 and 2,110,995.75 is: 2,911,929.82
Step by Step Solution
- Step 1: Write the proportion equation
2,983,142.19 : 4,114,977.82 = 2,110,995.75 : x - Step 2: Convert to fraction form
2,983,142.19/4,114,977.82 = 2,110,995.75/x - Step 3: Cross multiply
2,983,142.19x = 4,114,977.82 × 2,110,995.75 - Step 4: Simplify right side
2,983,142.19x = 8,686,700,689,364.27 - Step 5: Solve for x
x = 8,686,700,689,364.27/2,983,142.19 - Step 6: Final answer
x = 2,911,929.82
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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.