Finding the Fourth Proportional to 97,373,840.78, 145,933,584.37 and 74,260,143.09
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Solution
The fourth proportional to 97,373,840.78, 145,933,584.37 and 74,260,143.09 is: 111,293,225.88
Step by Step Solution
- Step 1: Write the proportion equation
97,373,840.78 : 145,933,584.37 = 74,260,143.09 : x - Step 2: Convert to fraction form
97,373,840.78/145,933,584.37 = 74,260,143.09/x - Step 3: Cross multiply
97,373,840.78x = 145,933,584.37 × 74,260,143.09 - Step 4: Simplify right side
97,373,840.78x = 10,837,048,856,767,138 - Step 5: Solve for x
x = 10,837,048,856,767,138/97,373,840.78 - Step 6: Final answer
x = 111,293,225.88
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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.