Finding the Fourth Proportional to 647,694,323.40, 971,541,485.10 and 531,468,176.70
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Solution
The fourth proportional to 647,694,323.40, 971,541,485.10 and 531,468,176.70 is: 797,202,265.05
Step by Step Solution
- Step 1: Write the proportion equation
647,694,323.40 : 971,541,485.10 = 531,468,176.70 : x - Step 2: Convert to fraction form
647,694,323.40/971,541,485.10 = 531,468,176.70/x - Step 3: Cross multiply
647,694,323.40x = 971,541,485.10 × 531,468,176.70 - Step 4: Simplify right side
647,694,323.40x = 516,343,381,674,507,200 - Step 5: Solve for x
x = 516,343,381,674,507,200/647,694,323.40 - Step 6: Final answer
x = 797,202,265.05
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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.