Finding the Fourth Proportional to 22,361,053.80, 30,857,539.50 and 12,571,912.20
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Solution
The fourth proportional to 22,361,053.80, 30,857,539.50 and 12,571,912.20 is: 17,348,836.99
Step by Step Solution
- Step 1: Write the proportion equation
22,361,053.80 : 30,857,539.50 = 12,571,912.20 : x - Step 2: Convert to fraction form
22,361,053.80/30,857,539.50 = 12,571,912.20/x - Step 3: Cross multiply
22,361,053.80x = 30,857,539.50 × 12,571,912.20 - Step 4: Simplify right side
22,361,053.80x = 387,938,277,302,031.88 - Step 5: Solve for x
x = 387,938,277,302,031.88/22,361,053.80 - Step 6: Final answer
x = 17,348,836.99
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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.