Finding the Fourth Proportional to 236,990,747.60, 355,486,121.40 and 122,199,491.60
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Solution
The fourth proportional to 236,990,747.60, 355,486,121.40 and 122,199,491.60 is: 183,299,237.40
Step by Step Solution
- Step 1: Write the proportion equation
236,990,747.60 : 355,486,121.40 = 122,199,491.60 : x - Step 2: Convert to fraction form
236,990,747.60/355,486,121.40 = 122,199,491.60/x - Step 3: Cross multiply
236,990,747.60x = 355,486,121.40 × 122,199,491.60 - Step 4: Simplify right side
236,990,747.60x = 43,440,223,305,935,872 - Step 5: Solve for x
x = 43,440,223,305,935,872/236,990,747.60 - Step 6: Final answer
x = 183,299,237.40
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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.