Finding the Fourth Proportional to 1,075,967,999.20, 1,613,951,998.80 and 531,772,415.20
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Solution
The fourth proportional to 1,075,967,999.20, 1,613,951,998.80 and 531,772,415.20 is: 797,658,622.80
Step by Step Solution
- Step 1: Write the proportion equation
1,075,967,999.20 : 1,613,951,998.80 = 531,772,415.20 : x - Step 2: Convert to fraction form
1,075,967,999.20/1,613,951,998.80 = 531,772,415.20/x - Step 3: Cross multiply
1,075,967,999.20x = 1,613,951,998.80 × 531,772,415.20 - Step 4: Simplify right side
1,075,967,999.20x = 858,255,152,418,743,424 - Step 5: Solve for x
x = 858,255,152,418,743,424/1,075,967,999.20 - Step 6: Final answer
x = 797,658,622.80
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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.