Finding the Fourth Proportional to 12,928,650.41, 17,841,659.28 and 7,127,639.74
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Solution
The fourth proportional to 12,928,650.41, 17,841,659.28 and 7,127,639.74 is: 9,836,209.95
Step by Step Solution
- Step 1: Write the proportion equation
12,928,650.41 : 17,841,659.28 = 7,127,639.74 : x - Step 2: Convert to fraction form
12,928,650.41/17,841,659.28 = 7,127,639.74/x - Step 3: Cross multiply
12,928,650.41x = 17,841,659.28 × 7,127,639.74 - Step 4: Simplify right side
12,928,650.41x = 127,168,919,707,211.28 - Step 5: Solve for x
x = 127,168,919,707,211.28/12,928,650.41 - Step 6: Final answer
x = 9,836,209.95
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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.