Finding the Fourth Proportional to 885,100,918.20, 1,324,963,991.70 and 788,355,036.60
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Solution
The fourth proportional to 885,100,918.20, 1,324,963,991.70 and 788,355,036.60 is: 1,180,138,913.76
Step by Step Solution
- Step 1: Write the proportion equation
885,100,918.20 : 1,324,963,991.70 = 788,355,036.60 : x - Step 2: Convert to fraction form
885,100,918.20/1,324,963,991.70 = 788,355,036.60/x - Step 3: Cross multiply
885,100,918.20x = 1,324,963,991.70 × 788,355,036.60 - Step 4: Simplify right side
885,100,918.20x = 1,044,542,036,170,335,616 - Step 5: Solve for x
x = 1,044,542,036,170,335,616/885,100,918.20 - Step 6: Final answer
x = 1,180,138,913.76
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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.