Finding the Fourth Proportional to 7,122,167.07, 9,828,576.81 and 3,859,070.12
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Solution
The fourth proportional to 7,122,167.07, 9,828,576.81 and 3,859,070.12 is: 5,325,509.31
Step by Step Solution
- Step 1: Write the proportion equation
7,122,167.07 : 9,828,576.81 = 3,859,070.12 : x - Step 2: Convert to fraction form
7,122,167.07/9,828,576.81 = 3,859,070.12/x - Step 3: Cross multiply
7,122,167.07x = 9,828,576.81 × 3,859,070.12 - Step 4: Simplify right side
7,122,167.07x = 37,929,167,040,453.04 - Step 5: Solve for x
x = 37,929,167,040,453.04/7,122,167.07 - Step 6: Final answer
x = 5,325,509.31
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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.