Finding the Fourth Proportional to 1,568,052,921.33, 2,352,157,538.60 and 447,742,739.99
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Solution
The fourth proportional to 1,568,052,921.33, 2,352,157,538.60 and 447,742,739.99 is: 671,636,426.86
Step by Step Solution
- Step 1: Write the proportion equation
1,568,052,921.33 : 2,352,157,538.60 = 447,742,739.99 : x - Step 2: Convert to fraction form
1,568,052,921.33/2,352,157,538.60 = 447,742,739.99/x - Step 3: Cross multiply
1,568,052,921.33x = 2,352,157,538.60 × 447,742,739.99 - Step 4: Simplify right side
1,568,052,921.33x = 1,053,161,461,216,137,216 - Step 5: Solve for x
x = 1,053,161,461,216,137,216/1,568,052,921.33 - Step 6: Final answer
x = 671,636,426.86
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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.