Finding the Fourth Proportional to 99,163,036.80, 148,744,555.20 and 68,552,035.20
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Solution
The fourth proportional to 99,163,036.80, 148,744,555.20 and 68,552,035.20 is: 102,828,052.80
Step by Step Solution
- Step 1: Write the proportion equation
99,163,036.80 : 148,744,555.20 = 68,552,035.20 : x - Step 2: Convert to fraction form
99,163,036.80/148,744,555.20 = 68,552,035.20/x - Step 3: Cross multiply
99,163,036.80x = 148,744,555.20 × 68,552,035.20 - Step 4: Simplify right side
99,163,036.80x = 10,196,741,983,878,742 - Step 5: Solve for x
x = 10,196,741,983,878,742/99,163,036.80 - Step 6: Final answer
x = 102,828,052.80
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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.