Finding the Fourth Proportional to 374,385,381.36, 516,650,062.68 and 209,373,606.96
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Solution
The fourth proportional to 374,385,381.36, 516,650,062.68 and 209,373,606.96 is: 288,934,591.32
Step by Step Solution
- Step 1: Write the proportion equation
374,385,381.36 : 516,650,062.68 = 209,373,606.96 : x - Step 2: Convert to fraction form
374,385,381.36/516,650,062.68 = 209,373,606.96/x - Step 3: Cross multiply
374,385,381.36x = 516,650,062.68 × 209,373,606.96 - Step 4: Simplify right side
374,385,381.36x = 108,172,887,159,421,696 - Step 5: Solve for x
x = 108,172,887,159,421,696/374,385,381.36 - Step 6: Final answer
x = 288,934,591.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.