Finding the Fourth Proportional to 13,990,904.19, 19,306,938.06 and 7,795,630.80
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Solution
The fourth proportional to 13,990,904.19, 19,306,938.06 and 7,795,630.80 is: 10,757,686.49
Step by Step Solution
- Step 1: Write the proportion equation
13,990,904.19 : 19,306,938.06 = 7,795,630.80 : x - Step 2: Convert to fraction form
13,990,904.19/19,306,938.06 = 7,795,630.80/x - Step 3: Cross multiply
13,990,904.19x = 19,306,938.06 × 7,795,630.80 - Step 4: Simplify right side
13,990,904.19x = 150,509,760,994,228.22 - Step 5: Solve for x
x = 150,509,760,994,228.22/13,990,904.19 - Step 6: Final answer
x = 10,757,686.49
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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.