Finding the Fourth Proportional to 143,080,536.72, 197,493,958.97 and 83,557,888.75
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Solution
The fourth proportional to 143,080,536.72, 197,493,958.97 and 83,557,888.75 is: 115,334,892.02
Step by Step Solution
- Step 1: Write the proportion equation
143,080,536.72 : 197,493,958.97 = 83,557,888.75 : x - Step 2: Convert to fraction form
143,080,536.72/197,493,958.97 = 83,557,888.75/x - Step 3: Cross multiply
143,080,536.72x = 197,493,958.97 × 83,557,888.75 - Step 4: Simplify right side
143,080,536.72x = 16,502,178,252,412,324 - Step 5: Solve for x
x = 16,502,178,252,412,324/143,080,536.72 - Step 6: Final answer
x = 115,334,892.02
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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.