Finding the Fourth Proportional to 10,657,396.80, 15,986,095.20 and 2,679,220.80
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Solution
The fourth proportional to 10,657,396.80, 15,986,095.20 and 2,679,220.80 is: 4,018,831.20
Step by Step Solution
- Step 1: Write the proportion equation
10,657,396.80 : 15,986,095.20 = 2,679,220.80 : x - Step 2: Convert to fraction form
10,657,396.80/15,986,095.20 = 2,679,220.80/x - Step 3: Cross multiply
10,657,396.80x = 15,986,095.20 × 2,679,220.80 - Step 4: Simplify right side
10,657,396.80x = 42,830,278,770,620.16 - Step 5: Solve for x
x = 42,830,278,770,620.16/10,657,396.80 - Step 6: Final answer
x = 4,018,831.20
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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.