Finding the Fourth Proportional to 1,275,559,159.44, 1,760,271,662.16 and 688,848,295.44
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Solution
The fourth proportional to 1,275,559,159.44, 1,760,271,662.16 and 688,848,295.44 is: 950,610,659.66
Step by Step Solution
- Step 1: Write the proportion equation
1,275,559,159.44 : 1,760,271,662.16 = 688,848,295.44 : x - Step 2: Convert to fraction form
1,275,559,159.44/1,760,271,662.16 = 688,848,295.44/x - Step 3: Cross multiply
1,275,559,159.44x = 1,760,271,662.16 × 688,848,295.44 - Step 4: Simplify right side
1,275,559,159.44x = 1,212,560,133,990,251,776 - Step 5: Solve for x
x = 1,212,560,133,990,251,776/1,275,559,159.44 - Step 6: Final answer
x = 950,610,659.66
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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.