Finding the Fourth Proportional to 20,256,116.74, 30,384,130.08 and 15,651,798.05
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Solution
The fourth proportional to 20,256,116.74, 30,384,130.08 and 15,651,798.05 is: 23,477,662.28
Step by Step Solution
- Step 1: Write the proportion equation
20,256,116.74 : 30,384,130.08 = 15,651,798.05 : x - Step 2: Convert to fraction form
20,256,116.74/30,384,130.08 = 15,651,798.05/x - Step 3: Cross multiply
20,256,116.74x = 30,384,130.08 × 15,651,798.05 - Step 4: Simplify right side
20,256,116.74x = 475,566,267,937,090.31 - Step 5: Solve for x
x = 475,566,267,937,090.31/20,256,116.74 - Step 6: Final answer
x = 23,477,662.28
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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.