Finding the Fourth Proportional to 76,909,446.08, 106,021,960.80 and 58,542,741.44
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Solution
The fourth proportional to 76,909,446.08, 106,021,960.80 and 58,542,741.44 is: 80,702,911.73
Step by Step Solution
- Step 1: Write the proportion equation
76,909,446.08 : 106,021,960.80 = 58,542,741.44 : x - Step 2: Convert to fraction form
76,909,446.08/106,021,960.80 = 58,542,741.44/x - Step 3: Cross multiply
76,909,446.08x = 106,021,960.80 × 58,542,741.44 - Step 4: Simplify right side
76,909,446.08x = 6,206,816,238,076,215 - Step 5: Solve for x
x = 6,206,816,238,076,215/76,909,446.08 - Step 6: Final answer
x = 80,702,911.73
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.