Finding the Fourth Proportional to 1,864,558,412.80, 2,796,445,708.80 and 943,568,972.80
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Solution
The fourth proportional to 1,864,558,412.80, 2,796,445,708.80 and 943,568,972.80 is: 1,415,155,131.01
Step by Step Solution
- Step 1: Write the proportion equation
1,864,558,412.80 : 2,796,445,708.80 = 943,568,972.80 : x - Step 2: Convert to fraction form
1,864,558,412.80/2,796,445,708.80 = 943,568,972.80/x - Step 3: Cross multiply
1,864,558,412.80x = 2,796,445,708.80 × 943,568,972.80 - Step 4: Simplify right side
1,864,558,412.80x = 2,638,639,404,943,384,064 - Step 5: Solve for x
x = 2,638,639,404,943,384,064/1,864,558,412.80 - Step 6: Final answer
x = 1,415,155,131.01
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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.