Finding the Fourth Proportional to 29,135,710.53, 40,208,232.15 and 15,905,592.87
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Solution
The fourth proportional to 29,135,710.53, 40,208,232.15 and 15,905,592.87 is: 21,950,237.66
Step by Step Solution
- Step 1: Write the proportion equation
29,135,710.53 : 40,208,232.15 = 15,905,592.87 : x - Step 2: Convert to fraction form
29,135,710.53/40,208,232.15 = 15,905,592.87/x - Step 3: Cross multiply
29,135,710.53x = 40,208,232.15 × 15,905,592.87 - Step 4: Simplify right side
29,135,710.53x = 639,535,770,600,344.75 - Step 5: Solve for x
x = 639,535,770,600,344.75/29,135,710.53 - Step 6: Final answer
x = 21,950,237.66
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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.