Finding the Fourth Proportional to 1,189,714,235.70, 1,641,121,841.60 and 742,901,967.26
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Solution
The fourth proportional to 1,189,714,235.70, 1,641,121,841.60 and 742,901,967.26 is: 1,024,777,722.28
Step by Step Solution
- Step 1: Write the proportion equation
1,189,714,235.70 : 1,641,121,841.60 = 742,901,967.26 : x - Step 2: Convert to fraction form
1,189,714,235.70/1,641,121,841.60 = 742,901,967.26/x - Step 3: Cross multiply
1,189,714,235.70x = 1,641,121,841.60 × 742,901,967.26 - Step 4: Simplify right side
1,189,714,235.70x = 1,219,192,644,626,074,112 - Step 5: Solve for x
x = 1,219,192,644,626,074,112/1,189,714,235.70 - Step 6: Final answer
x = 1,024,777,722.28
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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.