Finding the Fourth Proportional to 920,025,684.84, 1,379,232,311.58 and 346,000,120.68
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Solution
The fourth proportional to 920,025,684.84, 1,379,232,311.58 and 346,000,120.68 is: 518,696,982.18
Step by Step Solution
- Step 1: Write the proportion equation
920,025,684.84 : 1,379,232,311.58 = 346,000,120.68 : x - Step 2: Convert to fraction form
920,025,684.84/1,379,232,311.58 = 346,000,120.68/x - Step 3: Cross multiply
920,025,684.84x = 1,379,232,311.58 × 346,000,120.68 - Step 4: Simplify right side
920,025,684.84x = 477,214,546,252,435,328 - Step 5: Solve for x
x = 477,214,546,252,435,328/920,025,684.84 - Step 6: Final answer
x = 518,696,982.18
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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.