Finding the Fourth Proportional to 7,620,010.74, 10,512,900.14 and 4,520,159.66
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Solution
The fourth proportional to 7,620,010.74, 10,512,900.14 and 4,520,159.66 is: 6,236,209.99
Step by Step Solution
- Step 1: Write the proportion equation
7,620,010.74 : 10,512,900.14 = 4,520,159.66 : x - Step 2: Convert to fraction form
7,620,010.74/10,512,900.14 = 4,520,159.66/x - Step 3: Cross multiply
7,620,010.74x = 10,512,900.14 × 4,520,159.66 - Step 4: Simplify right side
7,620,010.74x = 47,519,987,122,436.36 - Step 5: Solve for x
x = 47,519,987,122,436.36/7,620,010.74 - Step 6: Final answer
x = 6,236,209.99
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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.