Finding the Fourth Proportional to 298,658,340.80, 447,987,511.20 and 254,820,363.20
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Solution
The fourth proportional to 298,658,340.80, 447,987,511.20 and 254,820,363.20 is: 382,230,544.80
Step by Step Solution
- Step 1: Write the proportion equation
298,658,340.80 : 447,987,511.20 = 254,820,363.20 : x - Step 2: Convert to fraction form
298,658,340.80/447,987,511.20 = 254,820,363.20/x - Step 3: Cross multiply
298,658,340.80x = 447,987,511.20 × 254,820,363.20 - Step 4: Simplify right side
298,658,340.80x = 114,156,340,313,048,064 - Step 5: Solve for x
x = 114,156,340,313,048,064/298,658,340.80 - Step 6: Final answer
x = 382,230,544.80
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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.