Finding the Fourth Proportional to 398,659,780.84, 597,972,634.68 and 136,367,785.72
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Solution
The fourth proportional to 398,659,780.84, 597,972,634.68 and 136,367,785.72 is: 204,545,850.95
Step by Step Solution
- Step 1: Write the proportion equation
398,659,780.84 : 597,972,634.68 = 136,367,785.72 : x - Step 2: Convert to fraction form
398,659,780.84/597,972,634.68 = 136,367,785.72/x - Step 3: Cross multiply
398,659,780.84x = 597,972,634.68 × 136,367,785.72 - Step 4: Simplify right side
398,659,780.84x = 81,544,204,112,466,080 - Step 5: Solve for x
x = 81,544,204,112,466,080/398,659,780.84 - Step 6: Final answer
x = 204,545,850.95
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.