Finding the Fourth Proportional to 115,687,273.68, 159,503,178.36 and 84,693,634.80
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Solution
The fourth proportional to 115,687,273.68, 159,503,178.36 and 84,693,634.80 is: 116,770,872.96
Step by Step Solution
- Step 1: Write the proportion equation
115,687,273.68 : 159,503,178.36 = 84,693,634.80 : x - Step 2: Convert to fraction form
115,687,273.68/159,503,178.36 = 84,693,634.80/x - Step 3: Cross multiply
115,687,273.68x = 159,503,178.36 × 84,693,634.80 - Step 4: Simplify right side
115,687,273.68x = 13,508,903,937,461,104 - Step 5: Solve for x
x = 13,508,903,937,461,104/115,687,273.68 - Step 6: Final answer
x = 116,770,872.96
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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.