Finding the Fourth Proportional to 1,177,529,725.26, 1,625,001,768.36 and 648,912,678.48
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Solution
The fourth proportional to 1,177,529,725.26, 1,625,001,768.36 and 648,912,678.48 is: 895,505,419.03
Step by Step Solution
- Step 1: Write the proportion equation
1,177,529,725.26 : 1,625,001,768.36 = 648,912,678.48 : x - Step 2: Convert to fraction form
1,177,529,725.26/1,625,001,768.36 = 648,912,678.48/x - Step 3: Cross multiply
1,177,529,725.26x = 1,625,001,768.36 × 648,912,678.48 - Step 4: Simplify right side
1,177,529,725.26x = 1,054,484,250,041,224,064 - Step 5: Solve for x
x = 1,054,484,250,041,224,064/1,177,529,725.26 - Step 6: Final answer
x = 895,505,419.03
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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.