Finding the Fourth Proportional to 5,078,970.99, 7,009,182.06 and 2,787,213.69
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Solution
The fourth proportional to 5,078,970.99, 7,009,182.06 and 2,787,213.69 is: 3,846,465.80
Step by Step Solution
- Step 1: Write the proportion equation
5,078,970.99 : 7,009,182.06 = 2,787,213.69 : x - Step 2: Convert to fraction form
5,078,970.99/7,009,182.06 = 2,787,213.69/x - Step 3: Cross multiply
5,078,970.99x = 7,009,182.06 × 2,787,213.69 - Step 4: Simplify right side
5,078,970.99x = 19,536,088,193,334.40 - Step 5: Solve for x
x = 19,536,088,193,334.40/5,078,970.99 - Step 6: Final answer
x = 3,846,465.80
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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.