Finding the Fourth Proportional to 7,918,869.68, 10,928,040.15 and 4,297,197.68
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Solution
The fourth proportional to 7,918,869.68, 10,928,040.15 and 4,297,197.68 is: 5,930,132.79
Step by Step Solution
- Step 1: Write the proportion equation
7,918,869.68 : 10,928,040.15 = 4,297,197.68 : x - Step 2: Convert to fraction form
7,918,869.68/10,928,040.15 = 4,297,197.68/x - Step 3: Cross multiply
7,918,869.68x = 10,928,040.15 × 4,297,197.68 - Step 4: Simplify right side
7,918,869.68x = 46,959,948,735,629.64 - Step 5: Solve for x
x = 46,959,948,735,629.64/7,918,869.68 - Step 6: Final answer
x = 5,930,132.79
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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.