Finding the Fourth Proportional to 527,179,207.84, 790,760,009.49 and 128,341,981.87
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Solution
The fourth proportional to 527,179,207.84, 790,760,009.49 and 128,341,981.87 is: 192,510,829.89
Step by Step Solution
- Step 1: Write the proportion equation
527,179,207.84 : 790,760,009.49 = 128,341,981.87 : x - Step 2: Convert to fraction form
527,179,207.84/790,760,009.49 = 128,341,981.87/x - Step 3: Cross multiply
527,179,207.84x = 790,760,009.49 × 128,341,981.87 - Step 4: Simplify right side
527,179,207.84x = 101,487,706,801,486,608 - Step 5: Solve for x
x = 101,487,706,801,486,608/527,179,207.84 - Step 6: Final answer
x = 192,510,829.89
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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.