Finding the Fourth Proportional to 7,866,929.16, 10,854,921.33 and 4,382,181.09
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Solution
The fourth proportional to 7,866,929.16, 10,854,921.33 and 4,382,181.09 is: 6,046,607.26
Step by Step Solution
- Step 1: Write the proportion equation
7,866,929.16 : 10,854,921.33 = 4,382,181.09 : x - Step 2: Convert to fraction form
7,866,929.16/10,854,921.33 = 4,382,181.09/x - Step 3: Cross multiply
7,866,929.16x = 10,854,921.33 × 4,382,181.09 - Step 4: Simplify right side
7,866,929.16x = 47,568,230,985,763.65 - Step 5: Solve for x
x = 47,568,230,985,763.65/7,866,929.16 - Step 6: Final answer
x = 6,046,607.26
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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.