Finding the Fourth Proportional to 519,003,213.20, 778,504,819.80 and 155,497,569.20
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Solution
The fourth proportional to 519,003,213.20, 778,504,819.80 and 155,497,569.20 is: 233,246,353.80
Step by Step Solution
- Step 1: Write the proportion equation
519,003,213.20 : 778,504,819.80 = 155,497,569.20 : x - Step 2: Convert to fraction form
519,003,213.20/778,504,819.80 = 155,497,569.20/x - Step 3: Cross multiply
519,003,213.20x = 778,504,819.80 × 155,497,569.20 - Step 4: Simplify right side
519,003,213.20x = 121,055,607,089,384,016 - Step 5: Solve for x
x = 121,055,607,089,384,016/519,003,213.20 - Step 6: Final answer
x = 233,246,353.80
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1.5x scale
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.