Finding the Fourth Proportional to 168,029,920.80, 252,044,881.20 and 147,874,528.80
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Solution
The fourth proportional to 168,029,920.80, 252,044,881.20 and 147,874,528.80 is: 221,811,793.20
Step by Step Solution
- Step 1: Write the proportion equation
168,029,920.80 : 252,044,881.20 = 147,874,528.80 : x - Step 2: Convert to fraction form
168,029,920.80/252,044,881.20 = 147,874,528.80/x - Step 3: Cross multiply
168,029,920.80x = 252,044,881.20 × 147,874,528.80 - Step 4: Simplify right side
168,029,920.80x = 37,271,018,043,901,976 - Step 5: Solve for x
x = 37,271,018,043,901,976/168,029,920.80 - Step 6: Final answer
x = 221,811,793.20
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1.5x scale
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.