Finding the Fourth Proportional to 1,440,642,726.48, 1,988,109,534.24 and 845,940,361.44
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Solution
The fourth proportional to 1,440,642,726.48, 1,988,109,534.24 and 845,940,361.44 is: 1,167,410,952.81
Step by Step Solution
- Step 1: Write the proportion equation
1,440,642,726.48 : 1,988,109,534.24 = 845,940,361.44 : x - Step 2: Convert to fraction form
1,440,642,726.48/1,988,109,534.24 = 845,940,361.44/x - Step 3: Cross multiply
1,440,642,726.48x = 1,988,109,534.24 × 845,940,361.44 - Step 4: Simplify right side
1,440,642,726.48x = 1,681,822,097,977,295,872 - Step 5: Solve for x
x = 1,681,822,097,977,295,872/1,440,642,726.48 - Step 6: Final answer
x = 1,167,410,952.81
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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.