Finding the Fourth Proportional to 1,489,068,360.99, 2,054,848,052.81 and 853,533,236.54
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Solution
The fourth proportional to 1,489,068,360.99, 2,054,848,052.81 and 853,533,236.54 is: 1,177,837,871.70
Step by Step Solution
- Step 1: Write the proportion equation
1,489,068,360.99 : 2,054,848,052.81 = 853,533,236.54 : x - Step 2: Convert to fraction form
1,489,068,360.99/2,054,848,052.81 = 853,533,236.54/x - Step 3: Cross multiply
1,489,068,360.99x = 2,054,848,052.81 × 853,533,236.54 - Step 4: Simplify right side
1,489,068,360.99x = 1,753,881,109,120,107,008 - Step 5: Solve for x
x = 1,753,881,109,120,107,008/1,489,068,360.99 - Step 6: Final answer
x = 1,177,837,871.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.