Finding the Fourth Proportional to 574,477,321.20, 861,715,981.80 and 342,025,027.80
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Solution
The fourth proportional to 574,477,321.20, 861,715,981.80 and 342,025,027.80 is: 513,037,541.70
Step by Step Solution
- Step 1: Write the proportion equation
574,477,321.20 : 861,715,981.80 = 342,025,027.80 : x - Step 2: Convert to fraction form
574,477,321.20/861,715,981.80 = 342,025,027.80/x - Step 3: Cross multiply
574,477,321.20x = 861,715,981.80 × 342,025,027.80 - Step 4: Simplify right side
574,477,321.20x = 294,728,432,630,849,280 - Step 5: Solve for x
x = 294,728,432,630,849,280/574,477,321.20 - Step 6: Final answer
x = 513,037,541.70
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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.