Finding the Fourth Proportional to 427,121,188.88, 589,431,881.76 and 250,916,610.92
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Solution
The fourth proportional to 427,121,188.88, 589,431,881.76 and 250,916,610.92 is: 346,267,649.53
Step by Step Solution
- Step 1: Write the proportion equation
427,121,188.88 : 589,431,881.76 = 250,916,610.92 : x - Step 2: Convert to fraction form
427,121,188.88/589,431,881.76 = 250,916,610.92/x - Step 3: Cross multiply
427,121,188.88x = 589,431,881.76 × 250,916,610.92 - Step 4: Simplify right side
427,121,188.88x = 147,898,250,139,417,344 - Step 5: Solve for x
x = 147,898,250,139,417,344/427,121,188.88 - Step 6: Final answer
x = 346,267,649.53
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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.