Finding the Fourth Proportional to 7,114,953.42, 9,818,590.68 and 3,851,744.40
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Solution
The fourth proportional to 7,114,953.42, 9,818,590.68 and 3,851,744.40 is: 5,315,382.89
Step by Step Solution
- Step 1: Write the proportion equation
7,114,953.42 : 9,818,590.68 = 3,851,744.40 : x - Step 2: Convert to fraction form
7,114,953.42/9,818,590.68 = 3,851,744.40/x - Step 3: Cross multiply
7,114,953.42x = 9,818,590.68 × 3,851,744.40 - Step 4: Simplify right side
7,114,953.42x = 37,818,701,667,582.19 - Step 5: Solve for x
x = 37,818,701,667,582.19/7,114,953.42 - Step 6: Final answer
x = 5,315,382.89
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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.