Finding the Fourth Proportional to 806,573,207.70, 1,209,859,811.55 and 397,825,175.70
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Solution
The fourth proportional to 806,573,207.70, 1,209,859,811.55 and 397,825,175.70 is: 596,737,763.55
Step by Step Solution
- Step 1: Write the proportion equation
806,573,207.70 : 1,209,859,811.55 = 397,825,175.70 : x - Step 2: Convert to fraction form
806,573,207.70/1,209,859,811.55 = 397,825,175.70/x - Step 3: Cross multiply
806,573,207.70x = 1,209,859,811.55 × 397,825,175.70 - Step 4: Simplify right side
806,573,207.70x = 481,312,692,102,247,616 - Step 5: Solve for x
x = 481,312,692,102,247,616/806,573,207.70 - Step 6: Final answer
x = 596,737,763.55
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1.5x scale
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.