Finding the Fourth Proportional to 12,809,365.84, 17,674,034.52 and 7,651,720
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Solution
The fourth proportional to 12,809,365.84, 17,674,034.52 and 7,651,720 is: 10,557,647.05
Step by Step Solution
- Step 1: Write the proportion equation
12,809,365.84 : 17,674,034.52 = 7,651,720 : x - Step 2: Convert to fraction form
12,809,365.84/17,674,034.52 = 7,651,720/x - Step 3: Cross multiply
12,809,365.84x = 17,674,034.52 × 7,651,720 - Step 4: Simplify right side
12,809,365.84x = 135,236,763,417,374.39 - Step 5: Solve for x
x = 135,236,763,417,374.39/12,809,365.84 - Step 6: Final answer
x = 10,557,647.05
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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.