Finding the Fourth Proportional to 1,133,649,824.20, 1,700,474,736.30 and 939,939,579.70
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Solution
The fourth proportional to 1,133,649,824.20, 1,700,474,736.30 and 939,939,579.70 is: 1,409,909,369.55
Step by Step Solution
- Step 1: Write the proportion equation
1,133,649,824.20 : 1,700,474,736.30 = 939,939,579.70 : x - Step 2: Convert to fraction form
1,133,649,824.20/1,700,474,736.30 = 939,939,579.70/x - Step 3: Cross multiply
1,133,649,824.20x = 1,700,474,736.30 × 939,939,579.70 - Step 4: Simplify right side
1,133,649,824.20x = 1,598,343,508,928,290,304 - Step 5: Solve for x
x = 1,598,343,508,928,290,304/1,133,649,824.20 - Step 6: Final answer
x = 1,409,909,369.55
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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.