Finding the Fourth Proportional to 1,211,614,764.49, 1,672,161,232.33 and 703,089,500.41
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Solution
The fourth proportional to 1,211,614,764.49, 1,672,161,232.33 and 703,089,500.41 is: 970,340,606.52
Step by Step Solution
- Step 1: Write the proportion equation
1,211,614,764.49 : 1,672,161,232.33 = 703,089,500.41 : x - Step 2: Convert to fraction form
1,211,614,764.49/1,672,161,232.33 = 703,089,500.41/x - Step 3: Cross multiply
1,211,614,764.49x = 1,672,161,232.33 × 703,089,500.41 - Step 4: Simplify right side
1,211,614,764.49x = 1,175,679,005,443,869,440 - Step 5: Solve for x
x = 1,175,679,005,443,869,440/1,211,614,764.49 - Step 6: Final answer
x = 970,340,606.52
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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.