Finding the Fourth Proportional to 690,674,074.14, 1,036,337,836.71 and 358,504,553.46
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Solution
The fourth proportional to 690,674,074.14, 1,036,337,836.71 and 358,504,553.46 is: 537,926,421.87
Step by Step Solution
- Step 1: Write the proportion equation
690,674,074.14 : 1,036,337,836.71 = 358,504,553.46 : x - Step 2: Convert to fraction form
690,674,074.14/1,036,337,836.71 = 358,504,553.46/x - Step 3: Cross multiply
690,674,074.14x = 1,036,337,836.71 × 358,504,553.46 - Step 4: Simplify right side
690,674,074.14x = 371,531,833,383,420,928 - Step 5: Solve for x
x = 371,531,833,383,420,928/690,674,074.14 - Step 6: Final answer
x = 537,926,421.87
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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.