Finding the Fourth Proportional to 10,361,652.70, 15,542,479.05 and 7,338,343.90
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Solution
The fourth proportional to 10,361,652.70, 15,542,479.05 and 7,338,343.90 is: 11,007,515.85
Step by Step Solution
- Step 1: Write the proportion equation
10,361,652.70 : 15,542,479.05 = 7,338,343.90 : x - Step 2: Convert to fraction form
10,361,652.70/15,542,479.05 = 7,338,343.90/x - Step 3: Cross multiply
10,361,652.70x = 15,542,479.05 × 7,338,343.90 - Step 4: Simplify right side
10,361,652.70x = 114,056,056,327,445.31 - Step 5: Solve for x
x = 114,056,056,327,445.31/10,361,652.70 - Step 6: Final answer
x = 11,007,515.85
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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.