Finding the Fourth Proportional to 12,979,263.28, 17,909,393.37 and 7,471,573.97
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Solution
The fourth proportional to 12,979,263.28, 17,909,393.37 and 7,471,573.97 is: 10,309,626.54
Step by Step Solution
- Step 1: Write the proportion equation
12,979,263.28 : 17,909,393.37 = 7,471,573.97 : x - Step 2: Convert to fraction form
12,979,263.28/17,909,393.37 = 7,471,573.97/x - Step 3: Cross multiply
12,979,263.28x = 17,909,393.37 × 7,471,573.97 - Step 4: Simplify right side
12,979,263.28x = 133,811,357,224,152.77 - Step 5: Solve for x
x = 133,811,357,224,152.77/12,979,263.28 - Step 6: Final answer
x = 10,309,626.54
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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.