Finding the Fourth Proportional to 915,306,529.60, 1,372,959,794.40 and 814,977,467.20
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Solution
The fourth proportional to 915,306,529.60, 1,372,959,794.40 and 814,977,467.20 is: 1,222,466,200.80
Step by Step Solution
- Step 1: Write the proportion equation
915,306,529.60 : 1,372,959,794.40 = 814,977,467.20 : x - Step 2: Convert to fraction form
915,306,529.60/1,372,959,794.40 = 814,977,467.20/x - Step 3: Cross multiply
915,306,529.60x = 1,372,959,794.40 × 814,977,467.20 - Step 4: Simplify right side
915,306,529.60x = 1,118,931,295,807,544,832 - Step 5: Solve for x
x = 1,118,931,295,807,544,832/915,306,529.60 - Step 6: Final answer
x = 1,222,466,200.80
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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.