Finding the Fourth Proportional to 18,664,534.60, 27,996,801.90 and 15,475,888.60
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Solution
The fourth proportional to 18,664,534.60, 27,996,801.90 and 15,475,888.60 is: 23,213,832.90
Step by Step Solution
- Step 1: Write the proportion equation
18,664,534.60 : 27,996,801.90 = 15,475,888.60 : x - Step 2: Convert to fraction form
18,664,534.60/27,996,801.90 = 15,475,888.60/x - Step 3: Cross multiply
18,664,534.60x = 27,996,801.90 × 15,475,888.60 - Step 4: Simplify right side
18,664,534.60x = 433,275,387,360,668.31 - Step 5: Solve for x
x = 433,275,387,360,668.31/18,664,534.60 - Step 6: Final answer
x = 23,213,832.90
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1.5x scale
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.