Finding the Fourth Proportional to 199,590,070.80, 299,385,106.20 and 113,295,133.20
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Solution
The fourth proportional to 199,590,070.80, 299,385,106.20 and 113,295,133.20 is: 169,942,699.80
Step by Step Solution
- Step 1: Write the proportion equation
199,590,070.80 : 299,385,106.20 = 113,295,133.20 : x - Step 2: Convert to fraction form
199,590,070.80/299,385,106.20 = 113,295,133.20/x - Step 3: Cross multiply
199,590,070.80x = 299,385,106.20 × 113,295,133.20 - Step 4: Simplify right side
199,590,070.80x = 33,918,875,485,025,144 - Step 5: Solve for x
x = 33,918,875,485,025,144/199,590,070.80 - Step 6: Final answer
x = 169,942,699.80
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1.5x scale
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.