Finding the Fourth Proportional to 11,855,154.28, 16,360,129.56 and 6,422,646.28
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Solution
The fourth proportional to 11,855,154.28, 16,360,129.56 and 6,422,646.28 is: 8,863,260.89
Step by Step Solution
- Step 1: Write the proportion equation
11,855,154.28 : 16,360,129.56 = 6,422,646.28 : x - Step 2: Convert to fraction form
11,855,154.28/16,360,129.56 = 6,422,646.28/x - Step 3: Cross multiply
11,855,154.28x = 16,360,129.56 × 6,422,646.28 - Step 4: Simplify right side
11,855,154.28x = 105,075,325,258,852.05 - Step 5: Solve for x
x = 105,075,325,258,852.05/11,855,154.28 - Step 6: Final answer
x = 8,863,260.89
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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.