Finding the Fourth Proportional to 121,361,120.52, 167,523,889.73 and 79,547,879.31
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Solution
The fourth proportional to 121,361,120.52, 167,523,889.73 and 79,547,879.31 is: 109,805,925.52
Step by Step Solution
- Step 1: Write the proportion equation
121,361,120.52 : 167,523,889.73 = 79,547,879.31 : x - Step 2: Convert to fraction form
121,361,120.52/167,523,889.73 = 79,547,879.31/x - Step 3: Cross multiply
121,361,120.52x = 167,523,889.73 × 79,547,879.31 - Step 4: Simplify right side
121,361,120.52x = 13,326,170,160,548,430 - Step 5: Solve for x
x = 13,326,170,160,548,430/121,361,120.52 - Step 6: Final answer
x = 109,805,925.52
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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.