Finding the Fourth Proportional to 42,703,998.12, 64,042,749.09 and 15,406,742.30
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Solution
The fourth proportional to 42,703,998.12, 64,042,749.09 and 15,406,742.30 is: 23,105,333.80
Step by Step Solution
- Step 1: Write the proportion equation
42,703,998.12 : 64,042,749.09 = 15,406,742.30 : x - Step 2: Convert to fraction form
42,703,998.12/64,042,749.09 = 15,406,742.30/x - Step 3: Cross multiply
42,703,998.12x = 64,042,749.09 × 15,406,742.30 - Step 4: Simplify right side
42,703,998.12x = 986,690,131,092,975.75 - Step 5: Solve for x
x = 986,690,131,092,975.75/42,703,998.12 - Step 6: Final answer
x = 23,105,333.80
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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.