Finding the Fourth Proportional to 13,485,486.24, 18,594,069.48 and 10,899,169.20
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Solution
The fourth proportional to 13,485,486.24, 18,594,069.48 and 10,899,169.20 is: 15,028,001.64
Step by Step Solution
- Step 1: Write the proportion equation
13,485,486.24 : 18,594,069.48 = 10,899,169.20 : x - Step 2: Convert to fraction form
13,485,486.24/18,594,069.48 = 10,899,169.20/x - Step 3: Cross multiply
13,485,486.24x = 18,594,069.48 × 10,899,169.20 - Step 4: Simplify right side
13,485,486.24x = 202,659,909,379,076 - Step 5: Solve for x
x = 202,659,909,379,076/13,485,486.24 - Step 6: Final answer
x = 15,028,001.64
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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.