Finding the Fourth Proportional to 808,529,269.20, 1,212,793,903.80 and 723,876,622.80
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Solution
The fourth proportional to 808,529,269.20, 1,212,793,903.80 and 723,876,622.80 is: 1,085,814,934.20
Step by Step Solution
- Step 1: Write the proportion equation
808,529,269.20 : 1,212,793,903.80 = 723,876,622.80 : x - Step 2: Convert to fraction form
808,529,269.20/1,212,793,903.80 = 723,876,622.80/x - Step 3: Cross multiply
808,529,269.20x = 1,212,793,903.80 × 723,876,622.80 - Step 4: Simplify right side
808,529,269.20x = 877,913,155,235,171,968 - Step 5: Solve for x
x = 877,913,155,235,171,968/808,529,269.20 - Step 6: Final answer
x = 1,085,814,934.20
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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.