Finding the Fourth Proportional to 694,912,605.35, 1,042,545,343.49 and 321,689,562.71
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Solution
The fourth proportional to 694,912,605.35, 1,042,545,343.49 and 321,689,562.71 is: 482,616,019.73
Step by Step Solution
- Step 1: Write the proportion equation
694,912,605.35 : 1,042,545,343.49 = 321,689,562.71 : x - Step 2: Convert to fraction form
694,912,605.35/1,042,545,343.49 = 321,689,562.71/x - Step 3: Cross multiply
694,912,605.35x = 1,042,545,343.49 × 321,689,562.71 - Step 4: Simplify right side
694,912,605.35x = 335,375,955,651,036,352 - Step 5: Solve for x
x = 335,375,955,651,036,352/694,912,605.35 - Step 6: Final answer
x = 482,616,019.73
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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.