Finding the Fourth Proportional to 481,392,139.05, 664,323,803.51 and 261,375,565.05
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Solution
The fourth proportional to 481,392,139.05, 664,323,803.51 and 261,375,565.05 is: 360,699,719.48
Step by Step Solution
- Step 1: Write the proportion equation
481,392,139.05 : 664,323,803.51 = 261,375,565.05 : x - Step 2: Convert to fraction form
481,392,139.05/664,323,803.51 = 261,375,565.05/x - Step 3: Cross multiply
481,392,139.05x = 664,323,803.51 × 261,375,565.05 - Step 4: Simplify right side
481,392,139.05x = 173,638,009,517,284,544 - Step 5: Solve for x
x = 173,638,009,517,284,544/481,392,139.05 - Step 6: Final answer
x = 360,699,719.48
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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.