Finding the Fourth Proportional to 13,701,589.97, 18,908,208.86 and 7,422,131.93
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Solution
The fourth proportional to 13,701,589.97, 18,908,208.86 and 7,422,131.93 is: 10,242,550.02
Step by Step Solution
- Step 1: Write the proportion equation
13,701,589.97 : 18,908,208.86 = 7,422,131.93 : x - Step 2: Convert to fraction form
13,701,589.97/18,908,208.86 = 7,422,131.93/x - Step 3: Cross multiply
13,701,589.97x = 18,908,208.86 × 7,422,131.93 - Step 4: Simplify right side
13,701,589.97x = 140,339,220,587,263.20 - Step 5: Solve for x
x = 140,339,220,587,263.20/13,701,589.97 - Step 6: Final answer
x = 10,242,550.02
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1.5x scale
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.