Finding the Fourth Proportional to 13,254,138.99, 18,290,821.04 and 7,452,869.98
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Solution
The fourth proportional to 13,254,138.99, 18,290,821.04 and 7,452,869.98 is: 10,285,022.00
Step by Step Solution
- Step 1: Write the proportion equation
13,254,138.99 : 18,290,821.04 = 7,452,869.98 : x - Step 2: Convert to fraction form
13,254,138.99/18,290,821.04 = 7,452,869.98/x - Step 3: Cross multiply
13,254,138.99x = 18,290,821.04 × 7,452,869.98 - Step 4: Simplify right side
13,254,138.99x = 136,319,111,038,568.38 - Step 5: Solve for x
x = 136,319,111,038,568.38/13,254,138.99 - Step 6: Final answer
x = 10,285,022.00
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1.5x scale
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.