Finding the Fourth Proportional to 682,279,915.12, 1,023,532,929.60 and 239,507,742.84
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Solution
The fourth proportional to 682,279,915.12, 1,023,532,929.60 and 239,507,742.84 is: 359,301,301.79
Step by Step Solution
- Step 1: Write the proportion equation
682,279,915.12 : 1,023,532,929.60 = 239,507,742.84 : x - Step 2: Convert to fraction form
682,279,915.12/1,023,532,929.60 = 239,507,742.84/x - Step 3: Cross multiply
682,279,915.12x = 1,023,532,929.60 × 239,507,742.84 - Step 4: Simplify right side
682,279,915.12x = 245,144,061,690,908,640 - Step 5: Solve for x
x = 245,144,061,690,908,640/682,279,915.12 - Step 6: Final answer
x = 359,301,301.79
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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.