Finding the Fourth Proportional to 11,326,959.20, 16,990,438.80 and 3,348,783.20
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Solution
The fourth proportional to 11,326,959.20, 16,990,438.80 and 3,348,783.20 is: 5,023,174.80
Step by Step Solution
- Step 1: Write the proportion equation
11,326,959.20 : 16,990,438.80 = 3,348,783.20 : x - Step 2: Convert to fraction form
11,326,959.20/16,990,438.80 = 3,348,783.20/x - Step 3: Cross multiply
11,326,959.20x = 16,990,438.80 × 3,348,783.20 - Step 4: Simplify right side
11,326,959.20x = 56,897,296,014,068.16 - Step 5: Solve for x
x = 56,897,296,014,068.16/11,326,959.20 - Step 6: Final answer
x = 5,023,174.80
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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.