Finding the Fourth Proportional to 13,309,212.63, 18,366,768.76 and 7,197,641.13
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Solution
The fourth proportional to 13,309,212.63, 18,366,768.76 and 7,197,641.13 is: 9,932,774.68
Step by Step Solution
- Step 1: Write the proportion equation
13,309,212.63 : 18,366,768.76 = 7,197,641.13 : x - Step 2: Convert to fraction form
13,309,212.63/18,366,768.76 = 7,197,641.13/x - Step 3: Cross multiply
13,309,212.63x = 18,366,768.76 × 7,197,641.13 - Step 4: Simplify right side
13,309,212.63x = 132,197,410,188,264.08 - Step 5: Solve for x
x = 132,197,410,188,264.08/13,309,212.63 - Step 6: Final answer
x = 9,932,774.68
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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.