Finding the Fourth Proportional to 7,122,157.19, 9,828,563.03 and 3,859,060.23
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Solution
The fourth proportional to 7,122,157.19, 9,828,563.03 and 3,859,060.23 is: 5,325,495.59
Step by Step Solution
- Step 1: Write the proportion equation
7,122,157.19 : 9,828,563.03 = 3,859,060.23 : x - Step 2: Convert to fraction form
7,122,157.19/9,828,563.03 = 3,859,060.23/x - Step 3: Cross multiply
7,122,157.19x = 9,828,563.03 × 3,859,060.23 - Step 4: Simplify right side
7,122,157.19x = 37,929,016,687,826 - Step 5: Solve for x
x = 37,929,016,687,826/7,122,157.19 - Step 6: Final answer
x = 5,325,495.59
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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.