Finding the Fourth Proportional to 5,638,720.84, 7,781,236.86 and 3,060,349.72
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Solution
The fourth proportional to 5,638,720.84, 7,781,236.86 and 3,060,349.72 is: 4,223,175.21
Step by Step Solution
- Step 1: Write the proportion equation
5,638,720.84 : 7,781,236.86 = 3,060,349.72 : x - Step 2: Convert to fraction form
5,638,720.84/7,781,236.86 = 3,060,349.72/x - Step 3: Cross multiply
5,638,720.84x = 7,781,236.86 × 3,060,349.72 - Step 4: Simplify right side
5,638,720.84x = 23,813,306,045,754.68 - Step 5: Solve for x
x = 23,813,306,045,754.68/5,638,720.84 - Step 6: Final answer
x = 4,223,175.21
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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.