Finding the Fourth Proportional to 7,739,930.40, 11,609,897.64 and 2,275,026.08
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Solution
The fourth proportional to 7,739,930.40, 11,609,897.64 and 2,275,026.08 is: 3,412,539.72
Step by Step Solution
- Step 1: Write the proportion equation
7,739,930.40 : 11,609,897.64 = 2,275,026.08 : x - Step 2: Convert to fraction form
7,739,930.40/11,609,897.64 = 2,275,026.08/x - Step 3: Cross multiply
7,739,930.40x = 11,609,897.64 × 2,275,026.08 - Step 4: Simplify right side
7,739,930.40x = 26,412,819,917,130.45 - Step 5: Solve for x
x = 26,412,819,917,130.45/7,739,930.40 - Step 6: Final answer
x = 3,412,539.72
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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.