Finding the Fourth Proportional to 1,422,879,286.40, 2,134,318,929.60 and 934,677,900.80
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Solution
The fourth proportional to 1,422,879,286.40, 2,134,318,929.60 and 934,677,900.80 is: 1,402,016,851.20
Step by Step Solution
- Step 1: Write the proportion equation
1,422,879,286.40 : 2,134,318,929.60 = 934,677,900.80 : x - Step 2: Convert to fraction form
1,422,879,286.40/2,134,318,929.60 = 934,677,900.80/x - Step 3: Cross multiply
1,422,879,286.40x = 2,134,318,929.60 × 934,677,900.80 - Step 4: Simplify right side
1,422,879,286.40x = 1,994,900,736,756,230,912 - Step 5: Solve for x
x = 1,994,900,736,756,230,912/1,422,879,286.40 - Step 6: Final answer
x = 1,402,016,851.20
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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.