Finding the Fourth Proportional to 1,335,321,531.81, 2,001,568,613.63 and 449,163,288.99
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Solution
The fourth proportional to 1,335,321,531.81, 2,001,568,613.63 and 449,163,288.99 is: 673,269,411.31
Step by Step Solution
- Step 1: Write the proportion equation
1,335,321,531.81 : 2,001,568,613.63 = 449,163,288.99 : x - Step 2: Convert to fraction form
1,335,321,531.81/2,001,568,613.63 = 449,163,288.99/x - Step 3: Cross multiply
1,335,321,531.81x = 2,001,568,613.63 × 449,163,288.99 - Step 4: Simplify right side
1,335,321,531.81x = 899,031,141,634,959,488 - Step 5: Solve for x
x = 899,031,141,634,959,488/1,335,321,531.81 - Step 6: Final answer
x = 673,269,411.31
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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.