Finding the Fourth Proportional to 14,414,078.88, 19,891,430.40 and 7,887,709.68
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Solution
The fourth proportional to 14,414,078.88, 19,891,430.40 and 7,887,709.68 is: 10,885,040.20
Step by Step Solution
- Step 1: Write the proportion equation
14,414,078.88 : 19,891,430.40 = 7,887,709.68 : x - Step 2: Convert to fraction form
14,414,078.88/19,891,430.40 = 7,887,709.68/x - Step 3: Cross multiply
14,414,078.88x = 19,891,430.40 × 7,887,709.68 - Step 4: Simplify right side
14,414,078.88x = 156,897,828,115,126.25 - Step 5: Solve for x
x = 156,897,828,115,126.25/14,414,078.88 - Step 6: Final answer
x = 10,885,040.20
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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.