Finding the Fourth Proportional to 7,438,181.93, 10,264,128.23 and 4,174,366.10
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Solution
The fourth proportional to 7,438,181.93, 10,264,128.23 and 4,174,366.10 is: 5,760,309.34
Step by Step Solution
- Step 1: Write the proportion equation
7,438,181.93 : 10,264,128.23 = 4,174,366.10 : x - Step 2: Convert to fraction form
7,438,181.93/10,264,128.23 = 4,174,366.10/x - Step 3: Cross multiply
7,438,181.93x = 10,264,128.23 × 4,174,366.10 - Step 4: Simplify right side
7,438,181.93x = 42,846,228,878,044.37 - Step 5: Solve for x
x = 42,846,228,878,044.37/7,438,181.93 - Step 6: Final answer
x = 5,760,309.34
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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.