Finding the Fourth Proportional to 39,015,812.98, 53,841,210.24 and 21,374,576.74
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Solution
The fourth proportional to 39,015,812.98, 53,841,210.24 and 21,374,576.74 is: 29,496,580.80
Step by Step Solution
- Step 1: Write the proportion equation
39,015,812.98 : 53,841,210.24 = 21,374,576.74 : x - Step 2: Convert to fraction form
39,015,812.98/53,841,210.24 = 21,374,576.74/x - Step 3: Cross multiply
39,015,812.98x = 53,841,210.24 × 21,374,576.74 - Step 4: Simplify right side
39,015,812.98x = 1,150,833,080,049,353.75 - Step 5: Solve for x
x = 1,150,833,080,049,353.75/39,015,812.98 - Step 6: Final answer
x = 29,496,580.80
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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.