Finding the Fourth Proportional to 5,756,561.42, 7,944,066.58 and 3,178,247.18
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Solution
The fourth proportional to 5,756,561.42, 7,944,066.58 and 3,178,247.18 is: 4,385,987.63
Step by Step Solution
- Step 1: Write the proportion equation
5,756,561.42 : 7,944,066.58 = 3,178,247.18 : x - Step 2: Convert to fraction form
5,756,561.42/7,944,066.58 = 3,178,247.18/x - Step 3: Cross multiply
5,756,561.42x = 7,944,066.58 × 3,178,247.18 - Step 4: Simplify right side
5,756,561.42x = 25,248,207,205,617.25 - Step 5: Solve for x
x = 25,248,207,205,617.25/5,756,561.42 - Step 6: Final answer
x = 4,385,987.63
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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.