Finding the Fourth Proportional to 431,796,199.60, 647,694,299.40 and 354,312,101.80
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Solution
The fourth proportional to 431,796,199.60, 647,694,299.40 and 354,312,101.80 is: 531,468,152.70
Step by Step Solution
- Step 1: Write the proportion equation
431,796,199.60 : 647,694,299.40 = 354,312,101.80 : x - Step 2: Convert to fraction form
431,796,199.60/647,694,299.40 = 354,312,101.80/x - Step 3: Cross multiply
431,796,199.60x = 647,694,299.40 × 354,312,101.80 - Step 4: Simplify right side
431,796,199.60x = 229,485,928,544,292,480 - Step 5: Solve for x
x = 229,485,928,544,292,480/431,796,199.60 - Step 6: Final answer
x = 531,468,152.70
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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.