Finding the Fourth Proportional to 278,831,029.80, 418,157,810.12 and 92,050,195.44
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Solution
The fourth proportional to 278,831,029.80, 418,157,810.12 and 92,050,195.44 is: 138,045,999.31
Step by Step Solution
- Step 1: Write the proportion equation
278,831,029.80 : 418,157,810.12 = 92,050,195.44 : x - Step 2: Convert to fraction form
278,831,029.80/418,157,810.12 = 92,050,195.44/x - Step 3: Cross multiply
278,831,029.80x = 418,157,810.12 × 92,050,195.44 - Step 4: Simplify right side
278,831,029.80x = 38,491,508,146,308,408 - Step 5: Solve for x
x = 38,491,508,146,308,408/278,831,029.80 - Step 6: Final answer
x = 138,045,999.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.