Finding the Fourth Proportional to 4,724,352,142.80, 7,086,528,214.20 and 1,969,361,998.80
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Solution
The fourth proportional to 4,724,352,142.80, 7,086,528,214.20 and 1,969,361,998.80 is: 2,954,042,998.20
Step by Step Solution
- Step 1: Write the proportion equation
4,724,352,142.80 : 7,086,528,214.20 = 1,969,361,998.80 : x - Step 2: Convert to fraction form
4,724,352,142.80/7,086,528,214.20 = 1,969,361,998.80/x - Step 3: Cross multiply
4,724,352,142.80x = 7,086,528,214.20 × 1,969,361,998.80 - Step 4: Simplify right side
4,724,352,142.80x = 13,955,939,368,469,506,048 - Step 5: Solve for x
x = 13,955,939,368,469,506,048/4,724,352,142.80 - Step 6: Final answer
x = 2,954,042,998.20
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1.5x scale
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.