Finding the Fourth Proportional to 13,650,395.97, 18,837,430.95 and 7,538,693.25
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Solution
The fourth proportional to 13,650,395.97, 18,837,430.95 and 7,538,693.25 is: 10,403,332.90
Step by Step Solution
- Step 1: Write the proportion equation
13,650,395.97 : 18,837,430.95 = 7,538,693.25 : x - Step 2: Convert to fraction form
13,650,395.97/18,837,430.95 = 7,538,693.25/x - Step 3: Cross multiply
13,650,395.97x = 18,837,430.95 × 7,538,693.25 - Step 4: Simplify right side
13,650,395.97x = 142,009,613,550,106.09 - Step 5: Solve for x
x = 142,009,613,550,106.09/13,650,395.97 - Step 6: Final answer
x = 10,403,332.90
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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.