Finding the Fourth Proportional to 13,831,660.60, 20,733,494.10 and 8,148,959.80
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Solution
The fourth proportional to 13,831,660.60, 20,733,494.10 and 8,148,959.80 is: 12,215,193.45
Step by Step Solution
- Step 1: Write the proportion equation
13,831,660.60 : 20,733,494.10 = 8,148,959.80 : x - Step 2: Convert to fraction form
13,831,660.60/20,733,494.10 = 8,148,959.80/x - Step 3: Cross multiply
13,831,660.60x = 20,733,494.10 × 8,148,959.80 - Step 4: Simplify right side
13,831,660.60x = 168,956,409,934,437.19 - Step 5: Solve for x
x = 168,956,409,934,437.19/13,831,660.60 - Step 6: Final answer
x = 12,215,193.45
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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.