Finding the Fourth Proportional to 40,004,489.68, 55,206,460.68 and 21,669,775.12
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Solution
The fourth proportional to 40,004,489.68, 55,206,460.68 and 21,669,775.12 is: 29,904,433.17
Step by Step Solution
- Step 1: Write the proportion equation
40,004,489.68 : 55,206,460.68 = 21,669,775.12 : x - Step 2: Convert to fraction form
40,004,489.68/55,206,460.68 = 21,669,775.12/x - Step 3: Cross multiply
40,004,489.68x = 55,206,460.68 × 21,669,775.12 - Step 4: Simplify right side
40,004,489.68x = 1,196,311,588,106,722.25 - Step 5: Solve for x
x = 1,196,311,588,106,722.25/40,004,489.68 - Step 6: Final answer
x = 29,904,433.17
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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.