Finding the Fourth Proportional to 42,743,843.70, 64,110,844.80 and 12,451,706.70
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Solution
The fourth proportional to 42,743,843.70, 64,110,844.80 and 12,451,706.70 is: 18,676,126.59
Step by Step Solution
- Step 1: Write the proportion equation
42,743,843.70 : 64,110,844.80 = 12,451,706.70 : x - Step 2: Convert to fraction form
42,743,843.70/64,110,844.80 = 12,451,706.70/x - Step 3: Cross multiply
42,743,843.70x = 64,110,844.80 × 12,451,706.70 - Step 4: Simplify right side
42,743,843.70x = 798,289,435,738,820.12 - Step 5: Solve for x
x = 798,289,435,738,820.12/42,743,843.70 - Step 6: Final answer
x = 18,676,126.59
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.