Finding the Fourth Proportional to 103,898,338.18, 143,379,874.65 and 57,490,548.10
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Solution
The fourth proportional to 103,898,338.18, 143,379,874.65 and 57,490,548.10 is: 79,337,049.32
Step by Step Solution
- Step 1: Write the proportion equation
103,898,338.18 : 143,379,874.65 = 57,490,548.10 : x - Step 2: Convert to fraction form
103,898,338.18/143,379,874.65 = 57,490,548.10/x - Step 3: Cross multiply
103,898,338.18x = 143,379,874.65 × 57,490,548.10 - Step 4: Simplify right side
103,898,338.18x = 8,242,987,580,137,796 - Step 5: Solve for x
x = 8,242,987,580,137,796/103,898,338.18 - Step 6: Final answer
x = 79,337,049.32
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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.