Finding the Fourth Proportional to 7,790,987.84, 11,687,068.80 and 2,325,650.74
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Solution
The fourth proportional to 7,790,987.84, 11,687,068.80 and 2,325,650.74 is: 3,488,651.34
Step by Step Solution
- Step 1: Write the proportion equation
7,790,987.84 : 11,687,068.80 = 2,325,650.74 : x - Step 2: Convert to fraction form
7,790,987.84/11,687,068.80 = 2,325,650.74/x - Step 3: Cross multiply
7,790,987.84x = 11,687,068.80 × 2,325,650.74 - Step 4: Simplify right side
7,790,987.84x = 27,180,040,173,933.24 - Step 5: Solve for x
x = 27,180,040,173,933.24/7,790,987.84 - Step 6: Final answer
x = 3,488,651.34
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1.5x scale
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.