Finding the Fourth Proportional to 1,458,530,346.29, 2,187,801,129.08 and 353,133,361.53
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Solution
The fourth proportional to 1,458,530,346.29, 2,187,801,129.08 and 353,133,361.53 is: 529,701,400.48
Step by Step Solution
- Step 1: Write the proportion equation
1,458,530,346.29 : 2,187,801,129.08 = 353,133,361.53 : x - Step 2: Convert to fraction form
1,458,530,346.29/2,187,801,129.08 = 353,133,361.53/x - Step 3: Cross multiply
1,458,530,346.29x = 2,187,801,129.08 × 353,133,361.53 - Step 4: Simplify right side
1,458,530,346.29x = 772,585,567,069,384,064 - Step 5: Solve for x
x = 772,585,567,069,384,064/1,458,530,346.29 - Step 6: Final answer
x = 529,701,400.48
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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.