Finding the Fourth Proportional to 523,347,285.60, 784,170,622.80 and 436,616,114.40
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Solution
The fourth proportional to 523,347,285.60, 784,170,622.80 and 436,616,114.40 is: 654,214,781.99
Step by Step Solution
- Step 1: Write the proportion equation
523,347,285.60 : 784,170,622.80 = 436,616,114.40 : x - Step 2: Convert to fraction form
523,347,285.60/784,170,622.80 = 436,616,114.40/x - Step 3: Cross multiply
523,347,285.60x = 784,170,622.80 × 436,616,114.40 - Step 4: Simplify right side
523,347,285.60x = 342,381,530,353,564,032 - Step 5: Solve for x
x = 342,381,530,353,564,032/523,347,285.60 - Step 6: Final answer
x = 654,214,781.99
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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.