Finding the Fourth Proportional to 4,989,129.60, 7,487,193.60 and 3,196,372.80
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Solution
The fourth proportional to 4,989,129.60, 7,487,193.60 and 3,196,372.80 is: 4,796,801.02
Step by Step Solution
- Step 1: Write the proportion equation
4,989,129.60 : 7,487,193.60 = 3,196,372.80 : x - Step 2: Convert to fraction form
4,989,129.60/7,487,193.60 = 3,196,372.80/x - Step 3: Cross multiply
4,989,129.60x = 7,487,193.60 × 3,196,372.80 - Step 4: Simplify right side
4,989,129.60x = 23,931,861,971,374.08 - Step 5: Solve for x
x = 23,931,861,971,374.08/4,989,129.60 - Step 6: Final answer
x = 4,796,801.02
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.