Finding the Fourth Proportional to 1,263,063,433.05, 1,742,939,052.62 and 734,389,912.13
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Solution
The fourth proportional to 1,263,063,433.05, 1,742,939,052.62 and 734,389,912.13 is: 1,013,406,630.42
Step by Step Solution
- Step 1: Write the proportion equation
1,263,063,433.05 : 1,742,939,052.62 = 734,389,912.13 : x - Step 2: Convert to fraction form
1,263,063,433.05/1,742,939,052.62 = 734,389,912.13/x - Step 3: Cross multiply
1,263,063,433.05x = 1,742,939,052.62 × 734,389,912.13 - Step 4: Simplify right side
1,263,063,433.05x = 1,279,996,857,689,160,704 - Step 5: Solve for x
x = 1,279,996,857,689,160,704/1,263,063,433.05 - Step 6: Final answer
x = 1,013,406,630.42
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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.