Finding the Fourth Proportional to 11,110,854.78, 15,332,358.78 and 6,215,131.62
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Solution
The fourth proportional to 11,110,854.78, 15,332,358.78 and 6,215,131.62 is: 8,576,534.37
Step by Step Solution
- Step 1: Write the proportion equation
11,110,854.78 : 15,332,358.78 = 6,215,131.62 : x - Step 2: Convert to fraction form
11,110,854.78/15,332,358.78 = 6,215,131.62/x - Step 3: Cross multiply
11,110,854.78x = 15,332,358.78 × 6,215,131.62 - Step 4: Simplify right side
11,110,854.78x = 95,292,627,862,762.62 - Step 5: Solve for x
x = 95,292,627,862,762.62/11,110,854.78 - Step 6: Final answer
x = 8,576,534.37
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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.