Finding the Fourth Proportional to 3,029,018,634.91, 4,149,736,174.79 and 2,915,747,420.12
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Solution
The fourth proportional to 3,029,018,634.91, 4,149,736,174.79 and 2,915,747,420.12 is: 3,994,555,334.32
Step by Step Solution
- Step 1: Write the proportion equation
3,029,018,634.91 : 4,149,736,174.79 = 2,915,747,420.12 : x - Step 2: Convert to fraction form
3,029,018,634.91/4,149,736,174.79 = 2,915,747,420.12/x - Step 3: Cross multiply
3,029,018,634.91x = 4,149,736,174.79 × 2,915,747,420.12 - Step 4: Simplify right side
3,029,018,634.91x = 12,099,582,545,822,578,688 - Step 5: Solve for x
x = 12,099,582,545,822,578,688/3,029,018,634.91 - Step 6: Final answer
x = 3,994,555,334.32
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.