Finding the Fourth Proportional to 165,888,105.20, 248,832,157.80 and 135,655,017.20
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Solution
The fourth proportional to 165,888,105.20, 248,832,157.80 and 135,655,017.20 is: 203,482,525.80
Step by Step Solution
- Step 1: Write the proportion equation
165,888,105.20 : 248,832,157.80 = 135,655,017.20 : x - Step 2: Convert to fraction form
165,888,105.20/248,832,157.80 = 135,655,017.20/x - Step 3: Cross multiply
165,888,105.20x = 248,832,157.80 × 135,655,017.20 - Step 4: Simplify right side
165,888,105.20x = 33,755,330,646,272,112 - Step 5: Solve for x
x = 33,755,330,646,272,112/165,888,105.20 - Step 6: Final answer
x = 203,482,525.80
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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.