Finding the Fourth Proportional to 11,487,611.10, 15,852,903.39 and 6,330,972.72
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Solution
The fourth proportional to 11,487,611.10, 15,852,903.39 and 6,330,972.72 is: 8,736,742.39
Step by Step Solution
- Step 1: Write the proportion equation
11,487,611.10 : 15,852,903.39 = 6,330,972.72 : x - Step 2: Convert to fraction form
11,487,611.10/15,852,903.39 = 6,330,972.72/x - Step 3: Cross multiply
11,487,611.10x = 15,852,903.39 × 6,330,972.72 - Step 4: Simplify right side
11,487,611.10x = 100,364,298,894,885.52 - Step 5: Solve for x
x = 100,364,298,894,885.52/11,487,611.10 - Step 6: Final answer
x = 8,736,742.39
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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.