Finding the Fourth Proportional to 2,128,354,214.40, 3,193,593,004.80 and 1,208,936,563.20
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Solution
The fourth proportional to 2,128,354,214.40, 3,193,593,004.80 and 1,208,936,563.20 is: 1,814,007,896.51
Step by Step Solution
- Step 1: Write the proportion equation
2,128,354,214.40 : 3,193,593,004.80 = 1,208,936,563.20 : x - Step 2: Convert to fraction form
2,128,354,214.40/3,193,593,004.80 = 1,208,936,563.20/x - Step 3: Cross multiply
2,128,354,214.40x = 3,193,593,004.80 × 1,208,936,563.20 - Step 4: Simplify right side
2,128,354,214.40x = 3,860,851,351,482,473,472 - Step 5: Solve for x
x = 3,860,851,351,482,473,472/2,128,354,214.40 - Step 6: Final answer
x = 1,814,007,896.51
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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.