Finding the Fourth Proportional to 5,639,023.19, 7,781,643.52 and 3,060,649.01
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Solution
The fourth proportional to 5,639,023.19, 7,781,643.52 and 3,060,649.01 is: 4,223,582.47
Step by Step Solution
- Step 1: Write the proportion equation
5,639,023.19 : 7,781,643.52 = 3,060,649.01 : x - Step 2: Convert to fraction form
5,639,023.19/7,781,643.52 = 3,060,649.01/x - Step 3: Cross multiply
5,639,023.19x = 7,781,643.52 × 3,060,649.01 - Step 4: Simplify right side
5,639,023.19x = 23,816,879,481,449.45 - Step 5: Solve for x
x = 23,816,879,481,449.45/5,639,023.19 - Step 6: Final answer
x = 4,223,582.47
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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.