Finding the Fourth Proportional to 411,818,232.12, 617,750,693.77 and 131,723,749.05
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Solution
The fourth proportional to 411,818,232.12, 617,750,693.77 and 131,723,749.05 is: 197,593,090.87
Step by Step Solution
- Step 1: Write the proportion equation
411,818,232.12 : 617,750,693.77 = 131,723,749.05 : x - Step 2: Convert to fraction form
411,818,232.12/617,750,693.77 = 131,723,749.05/x - Step 3: Cross multiply
411,818,232.12x = 617,750,693.77 × 131,723,749.05 - Step 4: Simplify right side
411,818,232.12x = 81,372,437,361,622,880 - Step 5: Solve for x
x = 81,372,437,361,622,880/411,818,232.12 - Step 6: Final answer
x = 197,593,090.87
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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.