Finding the Fourth Proportional to 9,678,352.21, 13,356,478.41 and 5,267,864.63
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Solution
The fourth proportional to 9,678,352.21, 13,356,478.41 and 5,267,864.63 is: 7,269,844.98
Step by Step Solution
- Step 1: Write the proportion equation
9,678,352.21 : 13,356,478.41 = 5,267,864.63 : x - Step 2: Convert to fraction form
9,678,352.21/13,356,478.41 = 5,267,864.63/x - Step 3: Cross multiply
9,678,352.21x = 13,356,478.41 × 5,267,864.63 - Step 4: Simplify right side
9,678,352.21x = 70,360,120,171,058.31 - Step 5: Solve for x
x = 70,360,120,171,058.31/9,678,352.21 - Step 6: Final answer
x = 7,269,844.98
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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.