Finding the Fourth Proportional to 51,201,272.13, 76,801,982.10 and 20,909,135.13
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Solution
The fourth proportional to 51,201,272.13, 76,801,982.10 and 20,909,135.13 is: 31,363,732.88
Step by Step Solution
- Step 1: Write the proportion equation
51,201,272.13 : 76,801,982.10 = 20,909,135.13 : x - Step 2: Convert to fraction form
51,201,272.13/76,801,982.10 = 20,909,135.13/x - Step 3: Cross multiply
51,201,272.13x = 76,801,982.10 × 20,909,135.13 - Step 4: Simplify right side
51,201,272.13x = 1,605,863,021,980,741 - Step 5: Solve for x
x = 1,605,863,021,980,741/51,201,272.13 - Step 6: Final answer
x = 31,363,732.88
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.