Finding the Fourth Proportional to 325,969,389.60, 488,786,122.80 and 121,392,160.80
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Solution
The fourth proportional to 325,969,389.60, 488,786,122.80 and 121,392,160.80 is: 182,025,691.70
Step by Step Solution
- Step 1: Write the proportion equation
325,969,389.60 : 488,786,122.80 = 121,392,160.80 : x - Step 2: Convert to fraction form
325,969,389.60/488,786,122.80 = 121,392,160.80/x - Step 3: Cross multiply
325,969,389.60x = 488,786,122.80 × 121,392,160.80 - Step 4: Simplify right side
325,969,389.60x = 59,334,803,615,746,144 - Step 5: Solve for x
x = 59,334,803,615,746,144/325,969,389.60 - Step 6: Final answer
x = 182,025,691.70
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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.