Finding the Fourth Proportional to 885,735,961.20, 1,328,603,941.80 and 656,153,449.20
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Solution
The fourth proportional to 885,735,961.20, 1,328,603,941.80 and 656,153,449.20 is: 984,230,173.80
Step by Step Solution
- Step 1: Write the proportion equation
885,735,961.20 : 1,328,603,941.80 = 656,153,449.20 : x - Step 2: Convert to fraction form
885,735,961.20/1,328,603,941.80 = 656,153,449.20/x - Step 3: Cross multiply
885,735,961.20x = 1,328,603,941.80 × 656,153,449.20 - Step 4: Simplify right side
885,735,961.20x = 871,768,059,032,786,048 - Step 5: Solve for x
x = 871,768,059,032,786,048/885,735,961.20 - Step 6: Final answer
x = 984,230,173.80
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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.