Finding the Fourth Proportional to 3,679,289.81, 5,078,536.05 and 2,130,932.05
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Solution
The fourth proportional to 3,679,289.81, 5,078,536.05 and 2,130,932.05 is: 2,941,332.64
Step by Step Solution
- Step 1: Write the proportion equation
3,679,289.81 : 5,078,536.05 = 2,130,932.05 : x - Step 2: Convert to fraction form
3,679,289.81/5,078,536.05 = 2,130,932.05/x - Step 3: Cross multiply
3,679,289.81x = 5,078,536.05 × 2,130,932.05 - Step 4: Simplify right side
3,679,289.81x = 10,822,015,212,674.40 - Step 5: Solve for x
x = 10,822,015,212,674.40/3,679,289.81 - Step 6: Final answer
x = 2,941,332.64
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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.