Finding the Fourth Proportional to 11,479,394.30, 15,842,683.86 and 8,573,742.86
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Solution
The fourth proportional to 11,479,394.30, 15,842,683.86 and 8,573,742.86 is: 11,832,601.45
Step by Step Solution
- Step 1: Write the proportion equation
11,479,394.30 : 15,842,683.86 = 8,573,742.86 : x - Step 2: Convert to fraction form
11,479,394.30/15,842,683.86 = 8,573,742.86/x - Step 3: Cross multiply
11,479,394.30x = 15,842,683.86 × 8,573,742.86 - Step 4: Simplify right side
11,479,394.30x = 135,831,097,627,912.22 - Step 5: Solve for x
x = 135,831,097,627,912.22/11,479,394.30 - Step 6: Final answer
x = 11,832,601.45
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1.5x scale
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.