Finding the Fourth Proportional to 8,130,974.49, 11,233,924.62 and 6,920,076.33
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Solution
The fourth proportional to 8,130,974.49, 11,233,924.62 and 6,920,076.33 is: 9,560,922.37
Step by Step Solution
- Step 1: Write the proportion equation
8,130,974.49 : 11,233,924.62 = 6,920,076.33 : x - Step 2: Convert to fraction form
8,130,974.49/11,233,924.62 = 6,920,076.33/x - Step 3: Cross multiply
8,130,974.49x = 11,233,924.62 × 6,920,076.33 - Step 4: Simplify right side
8,130,974.49x = 77,739,615,855,866.23 - Step 5: Solve for x
x = 77,739,615,855,866.23/8,130,974.49 - Step 6: Final answer
x = 9,560,922.37
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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.