Finding the Fourth Proportional to 2,089,885,161.12, 2,883,392,140.80 and 1,185,492,153.60
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Solution
The fourth proportional to 2,089,885,161.12, 2,883,392,140.80 and 1,185,492,153.60 is: 1,635,610,808.80
Step by Step Solution
- Step 1: Write the proportion equation
2,089,885,161.12 : 2,883,392,140.80 = 1,185,492,153.60 : x - Step 2: Convert to fraction form
2,089,885,161.12/2,883,392,140.80 = 1,185,492,153.60/x - Step 3: Cross multiply
2,089,885,161.12x = 2,883,392,140.80 × 1,185,492,153.60 - Step 4: Simplify right side
2,089,885,161.12x = 3,418,238,758,670,306,304 - Step 5: Solve for x
x = 3,418,238,758,670,306,304/2,089,885,161.12 - Step 6: Final answer
x = 1,635,610,808.80
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1.5x scale
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.