Finding the Fourth Proportional to 123,386,822.92, 170,273,831.74 and 68,386,230.28
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Solution
The fourth proportional to 123,386,822.92, 170,273,831.74 and 68,386,230.28 is: 94,373,006.72
Step by Step Solution
- Step 1: Write the proportion equation
123,386,822.92 : 170,273,831.74 = 68,386,230.28 : x - Step 2: Convert to fraction form
123,386,822.92/170,273,831.74 = 68,386,230.28/x - Step 3: Cross multiply
123,386,822.92x = 170,273,831.74 × 68,386,230.28 - Step 4: Simplify right side
123,386,822.92x = 11,644,385,468,029,614 - Step 5: Solve for x
x = 11,644,385,468,029,614/123,386,822.92 - Step 6: Final answer
x = 94,373,006.72
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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.