Finding the Fourth Proportional to 13,221,020.70, 19,831,531.05 and 11,331,452.70
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Solution
The fourth proportional to 13,221,020.70, 19,831,531.05 and 11,331,452.70 is: 16,997,179.05
Step by Step Solution
- Step 1: Write the proportion equation
13,221,020.70 : 19,831,531.05 = 11,331,452.70 : x - Step 2: Convert to fraction form
13,221,020.70/19,831,531.05 = 11,331,452.70/x - Step 3: Cross multiply
13,221,020.70x = 19,831,531.05 × 11,331,452.70 - Step 4: Simplify right side
13,221,020.70x = 224,720,056,061,656.34 - Step 5: Solve for x
x = 224,720,056,061,656.34/13,221,020.70 - Step 6: Final answer
x = 16,997,179.05
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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.