Finding the Fourth Proportional to 1,412,825,844.48, 1,949,699,672.28 and 786,442,246.44
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Solution
The fourth proportional to 1,412,825,844.48, 1,949,699,672.28 and 786,442,246.44 is: 1,085,290,303.93
Step by Step Solution
- Step 1: Write the proportion equation
1,412,825,844.48 : 1,949,699,672.28 = 786,442,246.44 : x - Step 2: Convert to fraction form
1,412,825,844.48/1,949,699,672.28 = 786,442,246.44/x - Step 3: Cross multiply
1,412,825,844.48x = 1,949,699,672.28 × 786,442,246.44 - Step 4: Simplify right side
1,412,825,844.48x = 1,533,326,190,151,215,104 - Step 5: Solve for x
x = 1,533,326,190,151,215,104/1,412,825,844.48 - Step 6: Final answer
x = 1,085,290,303.93
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1.5x scale
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.