Finding the Fourth Proportional to 482,992,922.90, 724,135,090.35 and 191,716,015.70
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Solution
The fourth proportional to 482,992,922.90, 724,135,090.35 and 191,716,015.70 is: 287,433,392.43
Step by Step Solution
- Step 1: Write the proportion equation
482,992,922.90 : 724,135,090.35 = 191,716,015.70 : x - Step 2: Convert to fraction form
482,992,922.90/724,135,090.35 = 191,716,015.70/x - Step 3: Cross multiply
482,992,922.90x = 724,135,090.35 × 191,716,015.70 - Step 4: Simplify right side
482,992,922.90x = 138,828,294,350,461,520 - Step 5: Solve for x
x = 138,828,294,350,461,520/482,992,922.90 - Step 6: Final answer
x = 287,433,392.43
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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.