Finding the Fourth Proportional to 2,391,133.15, 3,571,460.57 and 2,163,077.92
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Solution
The fourth proportional to 2,391,133.15, 3,571,460.57 and 2,163,077.92 is: 3,230,831.17
Step by Step Solution
- Step 1: Write the proportion equation
2,391,133.15 : 3,571,460.57 = 2,163,077.92 : x - Step 2: Convert to fraction form
2,391,133.15/3,571,460.57 = 2,163,077.92/x - Step 3: Cross multiply
2,391,133.15x = 3,571,460.57 × 2,163,077.92 - Step 4: Simplify right side
2,391,133.15x = 7,725,347,501,117.61 - Step 5: Solve for x
x = 7,725,347,501,117.61/2,391,133.15 - Step 6: Final answer
x = 3,230,831.17
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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.