Finding the Fourth Proportional to 105,463,293.50, 145,540,509.11 and 58,421,087.53
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Solution
The fourth proportional to 105,463,293.50, 145,540,509.11 and 58,421,087.53 is: 80,621,745.62
Step by Step Solution
- Step 1: Write the proportion equation
105,463,293.50 : 145,540,509.11 = 58,421,087.53 : x - Step 2: Convert to fraction form
105,463,293.50/145,540,509.11 = 58,421,087.53/x - Step 3: Cross multiply
105,463,293.50x = 145,540,509.11 × 58,421,087.53 - Step 4: Simplify right side
105,463,293.50x = 8,502,634,821,439,194 - Step 5: Solve for x
x = 8,502,634,821,439,194/105,463,293.50 - Step 6: Final answer
x = 80,621,745.62
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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.