Finding the Fourth Proportional to 806,573,138.70, 1,209,859,708.05 and 397,825,106.70
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Solution
The fourth proportional to 806,573,138.70, 1,209,859,708.05 and 397,825,106.70 is: 596,737,660.05
Step by Step Solution
- Step 1: Write the proportion equation
806,573,138.70 : 1,209,859,708.05 = 397,825,106.70 : x - Step 2: Convert to fraction form
806,573,138.70/1,209,859,708.05 = 397,825,106.70/x - Step 3: Cross multiply
806,573,138.70x = 1,209,859,708.05 × 397,825,106.70 - Step 4: Simplify right side
806,573,138.70x = 481,312,567,447,022,080 - Step 5: Solve for x
x = 481,312,567,447,022,080/806,573,138.70 - Step 6: Final answer
x = 596,737,660.05
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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.