Finding the Fourth Proportional to 20,599,137.36, 28,423,906.56 and 12,337,264.80
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Solution
The fourth proportional to 20,599,137.36, 28,423,906.56 and 12,337,264.80 is: 17,023,686.76
Step by Step Solution
- Step 1: Write the proportion equation
20,599,137.36 : 28,423,906.56 = 12,337,264.80 : x - Step 2: Convert to fraction form
20,599,137.36/28,423,906.56 = 12,337,264.80/x - Step 3: Cross multiply
20,599,137.36x = 28,423,906.56 × 12,337,264.80 - Step 4: Simplify right side
20,599,137.36x = 350,673,261,881,177.06 - Step 5: Solve for x
x = 350,673,261,881,177.06/20,599,137.36 - Step 6: Final answer
x = 17,023,686.76
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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.