Finding the Fourth Proportional to 202,107,276.21, 278,909,709.31 and 111,583,682.99
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Solution
The fourth proportional to 202,107,276.21, 278,909,709.31 and 111,583,682.99 is: 153,986,403.51
Step by Step Solution
- Step 1: Write the proportion equation
202,107,276.21 : 278,909,709.31 = 111,583,682.99 : x - Step 2: Convert to fraction form
202,107,276.21/278,909,709.31 = 111,583,682.99/x - Step 3: Cross multiply
202,107,276.21x = 278,909,709.31 × 111,583,682.99 - Step 4: Simplify right side
202,107,276.21x = 31,121,772,586,480,092 - Step 5: Solve for x
x = 31,121,772,586,480,092/202,107,276.21 - Step 6: Final answer
x = 153,986,403.51
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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.