Finding the Fourth Proportional to 373,438,756.05, 515,390,673.36 and 212,541,859.28
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Solution
The fourth proportional to 373,438,756.05, 515,390,673.36 and 212,541,859.28 is: 293,333,485.60
Step by Step Solution
- Step 1: Write the proportion equation
373,438,756.05 : 515,390,673.36 = 212,541,859.28 : x - Step 2: Convert to fraction form
373,438,756.05/515,390,673.36 = 212,541,859.28/x - Step 3: Cross multiply
373,438,756.05x = 515,390,673.36 × 212,541,859.28 - Step 4: Simplify right side
373,438,756.05x = 109,542,091,968,928,624 - Step 5: Solve for x
x = 109,542,091,968,928,624/373,438,756.05 - Step 6: Final answer
x = 293,333,485.60
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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.