Finding the Fourth Proportional to 900,580,936.11, 1,349,112,119.92 and 620,412,361.38
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Solution
The fourth proportional to 900,580,936.11, 1,349,112,119.92 and 620,412,361.38 is: 929,406,566.95
Step by Step Solution
- Step 1: Write the proportion equation
900,580,936.11 : 1,349,112,119.92 = 620,412,361.38 : x - Step 2: Convert to fraction form
900,580,936.11/1,349,112,119.92 = 620,412,361.38/x - Step 3: Cross multiply
900,580,936.11x = 1,349,112,119.92 × 620,412,361.38 - Step 4: Simplify right side
900,580,936.11x = 837,005,836,082,842,880 - Step 5: Solve for x
x = 837,005,836,082,842,880/900,580,936.11 - Step 6: Final answer
x = 929,406,566.95
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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.