Finding the Fourth Proportional to 1,772,928,163.70, 2,659,392,245.55 and 805,469,347.70
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Solution
The fourth proportional to 1,772,928,163.70, 2,659,392,245.55 and 805,469,347.70 is: 1,208,204,021.55
Step by Step Solution
- Step 1: Write the proportion equation
1,772,928,163.70 : 2,659,392,245.55 = 805,469,347.70 : x - Step 2: Convert to fraction form
1,772,928,163.70/2,659,392,245.55 = 805,469,347.70/x - Step 3: Cross multiply
1,772,928,163.70x = 2,659,392,245.55 × 805,469,347.70 - Step 4: Simplify right side
1,772,928,163.70x = 2,142,058,937,301,596,928 - Step 5: Solve for x
x = 2,142,058,937,301,596,928/1,772,928,163.70 - Step 6: Final answer
x = 1,208,204,021.55
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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.