Finding the Fourth Proportional to 11,110,878.78, 15,332,391.90 and 6,215,155.62
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Solution
The fourth proportional to 11,110,878.78, 15,332,391.90 and 6,215,155.62 is: 8,576,567.49
Step by Step Solution
- Step 1: Write the proportion equation
11,110,878.78 : 15,332,391.90 = 6,215,155.62 : x - Step 2: Convert to fraction form
11,110,878.78/15,332,391.90 = 6,215,155.62/x - Step 3: Cross multiply
11,110,878.78x = 15,332,391.90 × 6,215,155.62 - Step 4: Simplify right side
11,110,878.78x = 95,293,201,685,327.48 - Step 5: Solve for x
x = 95,293,201,685,327.48/11,110,878.78 - Step 6: Final answer
x = 8,576,567.49
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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.