Finding the Fourth Proportional to 103,723,747.72, 143,138,724.58 and 57,313,595.68
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Solution
The fourth proportional to 103,723,747.72, 143,138,724.58 and 57,313,595.68 is: 79,092,735.92
Step by Step Solution
- Step 1: Write the proportion equation
103,723,747.72 : 143,138,724.58 = 57,313,595.68 : x - Step 2: Convert to fraction form
103,723,747.72/143,138,724.58 = 57,313,595.68/x - Step 3: Cross multiply
103,723,747.72x = 143,138,724.58 × 57,313,595.68 - Step 4: Simplify right side
103,723,747.72x = 8,203,794,986,728,999 - Step 5: Solve for x
x = 8,203,794,986,728,999/103,723,747.72 - Step 6: Final answer
x = 79,092,735.92
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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.