Finding the Fourth Proportional to 81,850,615.20, 122,775,922.80 and 49,565,574.45
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Solution
The fourth proportional to 81,850,615.20, 122,775,922.80 and 49,565,574.45 is: 74,348,361.68
Step by Step Solution
- Step 1: Write the proportion equation
81,850,615.20 : 122,775,922.80 = 49,565,574.45 : x - Step 2: Convert to fraction form
81,850,615.20/122,775,922.80 = 49,565,574.45/x - Step 3: Cross multiply
81,850,615.20x = 122,775,922.80 × 49,565,574.45 - Step 4: Simplify right side
81,850,615.20x = 6,085,459,142,210,853 - Step 5: Solve for x
x = 6,085,459,142,210,853/81,850,615.20 - Step 6: Final answer
x = 74,348,361.68
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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.