Finding the Fourth Proportional to 51,201,257.13, 76,801,959.60 and 20,909,120.13
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Solution
The fourth proportional to 51,201,257.13, 76,801,959.60 and 20,909,120.13 is: 31,363,710.38
Step by Step Solution
- Step 1: Write the proportion equation
51,201,257.13 : 76,801,959.60 = 20,909,120.13 : x - Step 2: Convert to fraction form
51,201,257.13/76,801,959.60 = 20,909,120.13/x - Step 3: Cross multiply
51,201,257.13x = 76,801,959.60 × 20,909,120.13 - Step 4: Simplify right side
51,201,257.13x = 1,605,861,399,495,806.50 - Step 5: Solve for x
x = 1,605,861,399,495,806.50/51,201,257.13 - Step 6: Final answer
x = 31,363,710.38
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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.