Finding the Fourth Proportional to 22,267,968.88, 30,729,297.36 and 12,974,959.84
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Solution
The fourth proportional to 22,267,968.88, 30,729,297.36 and 12,974,959.84 is: 17,905,153.42
Step by Step Solution
- Step 1: Write the proportion equation
22,267,968.88 : 30,729,297.36 = 12,974,959.84 : x - Step 2: Convert to fraction form
22,267,968.88/30,729,297.36 = 12,974,959.84/x - Step 3: Cross multiply
22,267,968.88x = 30,729,297.36 × 12,974,959.84 - Step 4: Simplify right side
22,267,968.88x = 398,711,399,157,418 - Step 5: Solve for x
x = 398,711,399,157,418/22,267,968.88 - Step 6: Final answer
x = 17,905,153.42
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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.