Finding the Fourth Proportional to 88,720,477.62, 122,438,959.73 and 53,449,385.91
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Solution
The fourth proportional to 88,720,477.62, 122,438,959.73 and 53,449,385.91 is: 73,762,984.42
Step by Step Solution
- Step 1: Write the proportion equation
88,720,477.62 : 122,438,959.73 = 53,449,385.91 : x - Step 2: Convert to fraction form
88,720,477.62/122,438,959.73 = 53,449,385.91/x - Step 3: Cross multiply
88,720,477.62x = 122,438,959.73 × 53,449,385.91 - Step 4: Simplify right side
88,720,477.62x = 6,544,287,208,148,278 - Step 5: Solve for x
x = 6,544,287,208,148,278/88,720,477.62 - Step 6: Final answer
x = 73,762,984.42
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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.