Finding the Fourth Proportional to 14,078,101.13, 19,427,779.56 and 7,639,573.13
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Solution
The fourth proportional to 14,078,101.13, 19,427,779.56 and 7,639,573.13 is: 10,542,610.92
Step by Step Solution
- Step 1: Write the proportion equation
14,078,101.13 : 19,427,779.56 = 7,639,573.13 : x - Step 2: Convert to fraction form
14,078,101.13/19,427,779.56 = 7,639,573.13/x - Step 3: Cross multiply
14,078,101.13x = 19,427,779.56 × 7,639,573.13 - Step 4: Simplify right side
14,078,101.13x = 148,419,942,605,000.31 - Step 5: Solve for x
x = 148,419,942,605,000.31/14,078,101.13 - Step 6: Final answer
x = 10,542,610.92
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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.