Finding the Fourth Proportional to 19,542,025.80, 29,313,038.70 and 13,873,321.80
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Solution
The fourth proportional to 19,542,025.80, 29,313,038.70 and 13,873,321.80 is: 20,809,982.70
Step by Step Solution
- Step 1: Write the proportion equation
19,542,025.80 : 29,313,038.70 = 13,873,321.80 : x - Step 2: Convert to fraction form
19,542,025.80/29,313,038.70 = 13,873,321.80/x - Step 3: Cross multiply
19,542,025.80x = 29,313,038.70 × 13,873,321.80 - Step 4: Simplify right side
19,542,025.80x = 406,669,218,820,953.69 - Step 5: Solve for x
x = 406,669,218,820,953.69/19,542,025.80 - Step 6: Final answer
x = 20,809,982.70
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1.5x scale
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.