Finding the Fourth Proportional to 66,889,737.20, 100,334,605.80 and 53,452,809.20
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Solution
The fourth proportional to 66,889,737.20, 100,334,605.80 and 53,452,809.20 is: 80,179,213.80
Step by Step Solution
- Step 1: Write the proportion equation
66,889,737.20 : 100,334,605.80 = 53,452,809.20 : x - Step 2: Convert to fraction form
66,889,737.20/100,334,605.80 = 53,452,809.20/x - Step 3: Cross multiply
66,889,737.20x = 100,334,605.80 × 53,452,809.20 - Step 4: Simplify right side
66,889,737.20x = 5,363,166,539,984,613 - Step 5: Solve for x
x = 5,363,166,539,984,613/66,889,737.20 - Step 6: Final answer
x = 80,179,213.80
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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.