Finding the Fourth Proportional to 1,135,198,959.20, 1,702,798,438.80 and 742,935,714.09
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Solution
The fourth proportional to 1,135,198,959.20, 1,702,798,438.80 and 742,935,714.09 is: 1,114,403,571.14
Step by Step Solution
- Step 1: Write the proportion equation
1,135,198,959.20 : 1,702,798,438.80 = 742,935,714.09 : x - Step 2: Convert to fraction form
1,135,198,959.20/1,702,798,438.80 = 742,935,714.09/x - Step 3: Cross multiply
1,135,198,959.20x = 1,702,798,438.80 × 742,935,714.09 - Step 4: Simplify right side
1,135,198,959.20x = 1,265,069,774,081,215,232 - Step 5: Solve for x
x = 1,265,069,774,081,215,232/1,135,198,959.20 - Step 6: Final answer
x = 1,114,403,571.14
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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.