Finding the Fourth Proportional to 168,546,887.55, 252,820,331.33 and 86,551,446.15
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Solution
The fourth proportional to 168,546,887.55, 252,820,331.33 and 86,551,446.15 is: 129,827,169.23
Step by Step Solution
- Step 1: Write the proportion equation
168,546,887.55 : 252,820,331.33 = 86,551,446.15 : x - Step 2: Convert to fraction form
168,546,887.55/252,820,331.33 = 86,551,446.15/x - Step 3: Cross multiply
168,546,887.55x = 252,820,331.33 × 86,551,446.15 - Step 4: Simplify right side
168,546,887.55x = 21,881,965,292,300,896 - Step 5: Solve for x
x = 21,881,965,292,300,896/168,546,887.55 - Step 6: Final answer
x = 129,827,169.23
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.