Finding the Fourth Proportional to 6,645,966.63, 9,171,207.19 and 3,665,788.12
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Solution
The fourth proportional to 6,645,966.63, 9,171,207.19 and 3,665,788.12 is: 5,058,662.53
Step by Step Solution
- Step 1: Write the proportion equation
6,645,966.63 : 9,171,207.19 = 3,665,788.12 : x - Step 2: Convert to fraction form
6,645,966.63/9,171,207.19 = 3,665,788.12/x - Step 3: Cross multiply
6,645,966.63x = 9,171,207.19 × 3,665,788.12 - Step 4: Simplify right side
6,645,966.63x = 33,619,702,363,160.58 - Step 5: Solve for x
x = 33,619,702,363,160.58/6,645,966.63 - Step 6: Final answer
x = 5,058,662.53
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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.