Finding the Fourth Proportional to 4,919,361.64, 6,788,426.76 and 2,854,217.23
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Solution
The fourth proportional to 4,919,361.64, 6,788,426.76 and 2,854,217.23 is: 3,938,650.18
Step by Step Solution
- Step 1: Write the proportion equation
4,919,361.64 : 6,788,426.76 = 2,854,217.23 : x - Step 2: Convert to fraction form
4,919,361.64/6,788,426.76 = 2,854,217.23/x - Step 3: Cross multiply
4,919,361.64x = 6,788,426.76 × 2,854,217.23 - Step 4: Simplify right side
4,919,361.64x = 19,375,644,622,985.07 - Step 5: Solve for x
x = 19,375,644,622,985.07/4,919,361.64 - Step 6: Final answer
x = 3,938,650.18
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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.