Finding the Fourth Proportional to 3,160,167.21, 4,360,563.18 and 1,919,132.19
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Solution
The fourth proportional to 3,160,167.21, 4,360,563.18 and 1,919,132.19 is: 2,648,118.47
Step by Step Solution
- Step 1: Write the proportion equation
3,160,167.21 : 4,360,563.18 = 1,919,132.19 : x - Step 2: Convert to fraction form
3,160,167.21/4,360,563.18 = 1,919,132.19/x - Step 3: Cross multiply
3,160,167.21x = 4,360,563.18 × 1,919,132.19 - Step 4: Simplify right side
3,160,167.21x = 8,368,497,165,266.76 - Step 5: Solve for x
x = 8,368,497,165,266.76/3,160,167.21 - Step 6: Final answer
x = 2,648,118.47
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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.