Finding the Fourth Proportional to 1,133,649,826.20, 1,700,474,739.30 and 939,939,581.70
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Solution
The fourth proportional to 1,133,649,826.20, 1,700,474,739.30 and 939,939,581.70 is: 1,409,909,372.55
Step by Step Solution
- Step 1: Write the proportion equation
1,133,649,826.20 : 1,700,474,739.30 = 939,939,581.70 : x - Step 2: Convert to fraction form
1,133,649,826.20/1,700,474,739.30 = 939,939,581.70/x - Step 3: Cross multiply
1,133,649,826.20x = 1,700,474,739.30 × 939,939,581.70 - Step 4: Simplify right side
1,133,649,826.20x = 1,598,343,515,149,058,560 - Step 5: Solve for x
x = 1,598,343,515,149,058,560/1,133,649,826.20 - Step 6: Final answer
x = 1,409,909,372.55
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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.