Finding the Fourth Proportional to 112,291,220.80, 168,436,831.20 and 39,519,233.20
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Solution
The fourth proportional to 112,291,220.80, 168,436,831.20 and 39,519,233.20 is: 59,278,849.80
Step by Step Solution
- Step 1: Write the proportion equation
112,291,220.80 : 168,436,831.20 = 39,519,233.20 : x - Step 2: Convert to fraction form
112,291,220.80/168,436,831.20 = 39,519,233.20/x - Step 3: Cross multiply
112,291,220.80x = 168,436,831.20 × 39,519,233.20 - Step 4: Simplify right side
112,291,220.80x = 6,656,494,411,661,836 - Step 5: Solve for x
x = 6,656,494,411,661,836/112,291,220.80 - Step 6: Final answer
x = 59,278,849.80
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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.