Finding the Fourth Proportional to 6,643,531.49, 9,168,073.58 and 3,587,745.74
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Solution
The fourth proportional to 6,643,531.49, 9,168,073.58 and 3,587,745.74 is: 4,951,089.18
Step by Step Solution
- Step 1: Write the proportion equation
6,643,531.49 : 9,168,073.58 = 3,587,745.74 : x - Step 2: Convert to fraction form
6,643,531.49/9,168,073.58 = 3,587,745.74/x - Step 3: Cross multiply
6,643,531.49x = 9,168,073.58 × 3,587,745.74 - Step 4: Simplify right side
6,643,531.49x = 32,892,716,880,606.25 - Step 5: Solve for x
x = 32,892,716,880,606.25/6,643,531.49 - Step 6: Final answer
x = 4,951,089.18
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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.