Finding the Fourth Proportional to 2,983,721.60, 4,475,582.40 and 2,031,939.20
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Solution
The fourth proportional to 2,983,721.60, 4,475,582.40 and 2,031,939.20 is: 3,047,908.80
Step by Step Solution
- Step 1: Write the proportion equation
2,983,721.60 : 4,475,582.40 = 2,031,939.20 : x - Step 2: Convert to fraction form
2,983,721.60/4,475,582.40 = 2,031,939.20/x - Step 3: Cross multiply
2,983,721.60x = 4,475,582.40 × 2,031,939.20 - Step 4: Simplify right side
2,983,721.60x = 9,094,111,321,390.08 - Step 5: Solve for x
x = 9,094,111,321,390.08/2,983,721.60 - Step 6: Final answer
x = 3,047,908.80
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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.