Finding the Fourth Proportional to 9,642,254.40, 13,306,474.40 and 5,291,745.48
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Solution
The fourth proportional to 9,642,254.40, 13,306,474.40 and 5,291,745.48 is: 7,302,698.40
Step by Step Solution
- Step 1: Write the proportion equation
9,642,254.40 : 13,306,474.40 = 5,291,745.48 : x - Step 2: Convert to fraction form
9,642,254.40/13,306,474.40 = 5,291,745.48/x - Step 3: Cross multiply
9,642,254.40x = 13,306,474.40 × 5,291,745.48 - Step 4: Simplify right side
9,642,254.40x = 70,414,475,734,476.98 - Step 5: Solve for x
x = 70,414,475,734,476.98/9,642,254.40 - Step 6: Final answer
x = 7,302,698.40
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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.