Finding the Fourth Proportional to 7,219,271.44, 9,962,596.20 and 4,318,783.12
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Solution
The fourth proportional to 7,219,271.44, 9,962,596.20 and 4,318,783.12 is: 5,959,921.67
Step by Step Solution
- Step 1: Write the proportion equation
7,219,271.44 : 9,962,596.20 = 4,318,783.12 : x - Step 2: Convert to fraction form
7,219,271.44/9,962,596.20 = 4,318,783.12/x - Step 3: Cross multiply
7,219,271.44x = 9,962,596.20 × 4,318,783.12 - Step 4: Simplify right side
7,219,271.44x = 43,026,292,299,936.14 - Step 5: Solve for x
x = 43,026,292,299,936.14/7,219,271.44 - Step 6: Final answer
x = 5,959,921.67
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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.