Finding the Fourth Proportional to 5,103,555.42, 7,042,885.36 and 2,780,440.79
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Solution
The fourth proportional to 5,103,555.42, 7,042,885.36 and 2,780,440.79 is: 3,836,996.79
Step by Step Solution
- Step 1: Write the proportion equation
5,103,555.42 : 7,042,885.36 = 2,780,440.79 : x - Step 2: Convert to fraction form
5,103,555.42/7,042,885.36 = 2,780,440.79/x - Step 3: Cross multiply
5,103,555.42x = 7,042,885.36 × 2,780,440.79 - Step 4: Simplify right side
5,103,555.42x = 19,582,325,761,142.36 - Step 5: Solve for x
x = 19,582,325,761,142.36/5,103,555.42 - Step 6: Final answer
x = 3,836,996.79
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1.5x scale
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.