Finding the Fourth Proportional to 682,344,831.60, 1,023,517,247.40 and 655,560,205.20
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Solution
The fourth proportional to 682,344,831.60, 1,023,517,247.40 and 655,560,205.20 is: 983,340,307.80
Step by Step Solution
- Step 1: Write the proportion equation
682,344,831.60 : 1,023,517,247.40 = 655,560,205.20 : x - Step 2: Convert to fraction form
682,344,831.60/1,023,517,247.40 = 655,560,205.20/x - Step 3: Cross multiply
682,344,831.60x = 1,023,517,247.40 × 655,560,205.20 - Step 4: Simplify right side
682,344,831.60x = 670,977,176,731,283,200 - Step 5: Solve for x
x = 670,977,176,731,283,200/682,344,831.60 - Step 6: Final answer
x = 983,340,307.80
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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.