Finding the Fourth Proportional to 386,995,114.05, 543,323,709.75 and 386,995,114.05
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Solution
The fourth proportional to 386,995,114.05, 543,323,709.75 and 386,995,114.05 is: 543,323,709.75
Step by Step Solution
- Step 1: Write the proportion equation
386,995,114.05 : 543,323,709.75 = 386,995,114.05 : x - Step 2: Convert to fraction form
386,995,114.05/543,323,709.75 = 386,995,114.05/x - Step 3: Cross multiply
386,995,114.05x = 543,323,709.75 × 386,995,114.05 - Step 4: Simplify right side
386,995,114.05x = 210,263,621,020,770,368 - Step 5: Solve for x
x = 210,263,621,020,770,368/386,995,114.05 - Step 6: Final answer
x = 543,323,709.75
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These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.