Finding the Fourth Proportional to 71,104,828.43, 106,657,242.66 and 19,986,847.23
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Solution
The fourth proportional to 71,104,828.43, 106,657,242.66 and 19,986,847.23 is: 29,980,270.85
Step by Step Solution
- Step 1: Write the proportion equation
71,104,828.43 : 106,657,242.66 = 19,986,847.23 : x - Step 2: Convert to fraction form
71,104,828.43/106,657,242.66 = 19,986,847.23/x - Step 3: Cross multiply
71,104,828.43x = 106,657,242.66 × 19,986,847.23 - Step 4: Simplify right side
71,104,828.43x = 2,131,742,015,018,458.75 - Step 5: Solve for x
x = 2,131,742,015,018,458.75/71,104,828.43 - Step 6: Final answer
x = 29,980,270.85
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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.