Finding the Fourth Proportional to 2,153,128,247.20, 3,231,204,025.20 and 927,176,528.80
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Solution
The fourth proportional to 2,153,128,247.20, 3,231,204,025.20 and 927,176,528.80 is: 1,391,415,739.32
Step by Step Solution
- Step 1: Write the proportion equation
2,153,128,247.20 : 3,231,204,025.20 = 927,176,528.80 : x - Step 2: Convert to fraction form
2,153,128,247.20/3,231,204,025.20 = 927,176,528.80/x - Step 3: Cross multiply
2,153,128,247.20x = 3,231,204,025.20 × 927,176,528.80 - Step 4: Simplify right side
2,153,128,247.20x = 2,995,896,531,929,523,200 - Step 5: Solve for x
x = 2,995,896,531,929,523,200/2,153,128,247.20 - Step 6: Final answer
x = 1,391,415,739.32
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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.