Finding the Fourth Proportional to 7,130,613.20, 9,840,468.99 and 4,033,075.97
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Solution
The fourth proportional to 7,130,613.20, 9,840,468.99 and 4,033,075.97 is: 5,565,770.84
Step by Step Solution
- Step 1: Write the proportion equation
7,130,613.20 : 9,840,468.99 = 4,033,075.97 : x - Step 2: Convert to fraction form
7,130,613.20/9,840,468.99 = 4,033,075.97/x - Step 3: Cross multiply
7,130,613.20x = 9,840,468.99 × 4,033,075.97 - Step 4: Simplify right side
7,130,613.20x = 39,687,359,017,099.17 - Step 5: Solve for x
x = 39,687,359,017,099.17/7,130,613.20 - Step 6: Final answer
x = 5,565,770.84
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1.5x scale
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.