Finding the Fourth Proportional to 415,599,943.61, 623,496,930.74 and 120,501,236.09
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Solution
The fourth proportional to 415,599,943.61, 623,496,930.74 and 120,501,236.09 is: 180,779,983.27
Step by Step Solution
- Step 1: Write the proportion equation
415,599,943.61 : 623,496,930.74 = 120,501,236.09 : x - Step 2: Convert to fraction form
415,599,943.61/623,496,930.74 = 120,501,236.09/x - Step 3: Cross multiply
415,599,943.61x = 623,496,930.74 × 120,501,236.09 - Step 4: Simplify right side
415,599,943.61x = 75,132,150,853,899,232 - Step 5: Solve for x
x = 75,132,150,853,899,232/415,599,943.61 - Step 6: Final answer
x = 180,779,983.27
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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.