Finding the Fourth Proportional to 782,351,992.95, 1,173,527,989.43 and 782,351,992.95
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Solution
The fourth proportional to 782,351,992.95, 1,173,527,989.43 and 782,351,992.95 is: 1,173,527,989.43
Step by Step Solution
- Step 1: Write the proportion equation
782,351,992.95 : 1,173,527,989.43 = 782,351,992.95 : x - Step 2: Convert to fraction form
782,351,992.95/1,173,527,989.43 = 782,351,992.95/x - Step 3: Cross multiply
782,351,992.95x = 1,173,527,989.43 × 782,351,992.95 - Step 4: Simplify right side
782,351,992.95x = 918,111,961,309,255,296 - Step 5: Solve for x
x = 918,111,961,309,255,296/782,351,992.95 - Step 6: Final answer
x = 1,173,527,989.43
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Double scale
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Similar ratio
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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.