Finding the Fourth Proportional to 1,809,162,701.20, 2,713,744,051.80 and 774,128,209.60
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Solution
The fourth proportional to 1,809,162,701.20, 2,713,744,051.80 and 774,128,209.60 is: 1,161,192,314.40
Step by Step Solution
- Step 1: Write the proportion equation
1,809,162,701.20 : 2,713,744,051.80 = 774,128,209.60 : x - Step 2: Convert to fraction form
1,809,162,701.20/2,713,744,051.80 = 774,128,209.60/x - Step 3: Cross multiply
1,809,162,701.20x = 2,713,744,051.80 × 774,128,209.60 - Step 4: Simplify right side
1,809,162,701.20x = 2,100,785,824,132,583,936 - Step 5: Solve for x
x = 2,100,785,824,132,583,936/1,809,162,701.20 - Step 6: Final answer
x = 1,161,192,314.40
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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.