Finding the Fourth Proportional to 5,209,107.05, 7,813,955.81 and 1,615,384.91
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Solution
The fourth proportional to 5,209,107.05, 7,813,955.81 and 1,615,384.91 is: 2,423,168.91
Step by Step Solution
- Step 1: Write the proportion equation
5,209,107.05 : 7,813,955.81 = 1,615,384.91 : x - Step 2: Convert to fraction form
5,209,107.05/7,813,955.81 = 1,615,384.91/x - Step 3: Cross multiply
5,209,107.05x = 7,813,955.81 × 1,615,384.91 - Step 4: Simplify right side
5,209,107.05x = 12,622,546,263,811.05 - Step 5: Solve for x
x = 12,622,546,263,811.05/5,209,107.05 - Step 6: Final answer
x = 2,423,168.91
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.