Finding the Fourth Proportional to 26,128,903.79, 36,004,712.37 and 20,212,599.99
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Solution
The fourth proportional to 26,128,903.79, 36,004,712.37 and 20,212,599.99 is: 27,852,253.38
Step by Step Solution
- Step 1: Write the proportion equation
26,128,903.79 : 36,004,712.37 = 20,212,599.99 : x - Step 2: Convert to fraction form
26,128,903.79/36,004,712.37 = 20,212,599.99/x - Step 3: Cross multiply
26,128,903.79x = 36,004,712.37 × 20,212,599.99 - Step 4: Simplify right side
26,128,903.79x = 727,748,848,889,814.75 - Step 5: Solve for x
x = 727,748,848,889,814.75/26,128,903.79 - Step 6: Final answer
x = 27,852,253.38
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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.