Finding the Fourth Proportional to 9,698,991.13, 13,384,126.78 and 5,512,128.62
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Solution
The fourth proportional to 9,698,991.13, 13,384,126.78 and 5,512,128.62 is: 7,606,464.15
Step by Step Solution
- Step 1: Write the proportion equation
9,698,991.13 : 13,384,126.78 = 5,512,128.62 : x - Step 2: Convert to fraction form
9,698,991.13/13,384,126.78 = 5,512,128.62/x - Step 3: Cross multiply
9,698,991.13x = 13,384,126.78 × 5,512,128.62 - Step 4: Simplify right side
9,698,991.13x = 73,775,028,303,336.94 - Step 5: Solve for x
x = 73,775,028,303,336.94/9,698,991.13 - Step 6: Final answer
x = 7,606,464.15
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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.