Finding the Fourth Proportional to 69,777,848.40, 104,666,765.72 and 18,658,538.62
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Solution
The fourth proportional to 69,777,848.40, 104,666,765.72 and 18,658,538.62 is: 27,987,806.09
Step by Step Solution
- Step 1: Write the proportion equation
69,777,848.40 : 104,666,765.72 = 18,658,538.62 : x - Step 2: Convert to fraction form
69,777,848.40/104,666,765.72 = 18,658,538.62/x - Step 3: Cross multiply
69,777,848.40x = 104,666,765.72 × 18,658,538.62 - Step 4: Simplify right side
69,777,848.40x = 1,952,928,890,417,112.25 - Step 5: Solve for x
x = 1,952,928,890,417,112.25/69,777,848.40 - Step 6: Final answer
x = 27,987,806.09
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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.