Finding the Fourth Proportional to 27,509,898.42, 37,963,739.36 and 15,121,261.26
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Solution
The fourth proportional to 27,509,898.42, 37,963,739.36 and 15,121,261.26 is: 20,867,384.26
Step by Step Solution
- Step 1: Write the proportion equation
27,509,898.42 : 37,963,739.36 = 15,121,261.26 : x - Step 2: Convert to fraction form
27,509,898.42/37,963,739.36 = 15,121,261.26/x - Step 3: Cross multiply
27,509,898.42x = 37,963,739.36 × 15,121,261.26 - Step 4: Simplify right side
27,509,898.42x = 574,059,621,269,105.12 - Step 5: Solve for x
x = 574,059,621,269,105.12/27,509,898.42 - Step 6: Final answer
x = 20,867,384.26
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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.