Finding the Fourth Proportional to 118,173,190.41, 163,106,212.55 and 69,296,364.81
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Solution
The fourth proportional to 118,173,190.41, 163,106,212.55 and 69,296,364.81 is: 95,644,939.16
Step by Step Solution
- Step 1: Write the proportion equation
118,173,190.41 : 163,106,212.55 = 69,296,364.81 : x - Step 2: Convert to fraction form
118,173,190.41/163,106,212.55 = 69,296,364.81/x - Step 3: Cross multiply
118,173,190.41x = 163,106,212.55 × 69,296,364.81 - Step 4: Simplify right side
118,173,190.41x = 11,302,667,607,295,718 - Step 5: Solve for x
x = 11,302,667,607,295,718/118,173,190.41 - Step 6: Final answer
x = 95,644,939.16
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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.