Finding the Fourth Proportional to 7,149,974.80, 9,867,169.44 and 4,359,259.12
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Solution
The fourth proportional to 7,149,974.80, 9,867,169.44 and 4,359,259.12 is: 6,015,902.09
Step by Step Solution
- Step 1: Write the proportion equation
7,149,974.80 : 9,867,169.44 = 4,359,259.12 : x - Step 2: Convert to fraction form
7,149,974.80/9,867,169.44 = 4,359,259.12/x - Step 3: Cross multiply
7,149,974.80x = 9,867,169.44 × 4,359,259.12 - Step 4: Simplify right side
7,149,974.80x = 43,013,548,369,905.29 - Step 5: Solve for x
x = 43,013,548,369,905.29/7,149,974.80 - Step 6: Final answer
x = 6,015,902.09
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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.