Finding the Fourth Proportional to 51,201,258.63, 76,801,961.86 and 20,909,121.63
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Solution
The fourth proportional to 51,201,258.63, 76,801,961.86 and 20,909,121.63 is: 31,363,712.62
Step by Step Solution
- Step 1: Write the proportion equation
51,201,258.63 : 76,801,961.86 = 20,909,121.63 : x - Step 2: Convert to fraction form
51,201,258.63/76,801,961.86 = 20,909,121.63/x - Step 3: Cross multiply
51,201,258.63x = 76,801,961.86 × 20,909,121.63 - Step 4: Simplify right side
51,201,258.63x = 1,605,861,561,464,805.75 - Step 5: Solve for x
x = 1,605,861,561,464,805.75/51,201,258.63 - Step 6: Final answer
x = 31,363,712.62
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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.