Finding the Fourth Proportional to 15,838,422.75, 21,857,023.40 and 8,595,078.75
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Solution
The fourth proportional to 15,838,422.75, 21,857,023.40 and 8,595,078.75 is: 11,861,208.68
Step by Step Solution
- Step 1: Write the proportion equation
15,838,422.75 : 21,857,023.40 = 8,595,078.75 : x - Step 2: Convert to fraction form
15,838,422.75/21,857,023.40 = 8,595,078.75/x - Step 3: Cross multiply
15,838,422.75x = 21,857,023.40 × 8,595,078.75 - Step 4: Simplify right side
15,838,422.75x = 187,862,837,320,617.34 - Step 5: Solve for x
x = 187,862,837,320,617.34/15,838,422.75 - Step 6: Final answer
x = 11,861,208.68
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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.