Finding the Fourth Proportional to 1,036,253,703.49, 1,555,079,949.02 and 405,907,574.23
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Solution
The fourth proportional to 1,036,253,703.49, 1,555,079,949.02 and 405,907,574.23 is: 609,135,318.61
Step by Step Solution
- Step 1: Write the proportion equation
1,036,253,703.49 : 1,555,079,949.02 = 405,907,574.23 : x - Step 2: Convert to fraction form
1,036,253,703.49/1,555,079,949.02 = 405,907,574.23/x - Step 3: Cross multiply
1,036,253,703.49x = 1,555,079,949.02 × 405,907,574.23 - Step 4: Simplify right side
1,036,253,703.49x = 631,218,729,840,420,224 - Step 5: Solve for x
x = 631,218,729,840,420,224/1,036,253,703.49 - Step 6: Final answer
x = 609,135,318.61
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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.