Finding the Fourth Proportional to 13,325,416.06, 18,389,115.58 and 7,213,829.98
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Solution
The fourth proportional to 13,325,416.06, 18,389,115.58 and 7,213,829.98 is: 9,955,107.79
Step by Step Solution
- Step 1: Write the proportion equation
13,325,416.06 : 18,389,115.58 = 7,213,829.98 : x - Step 2: Convert to fraction form
13,325,416.06/18,389,115.58 = 7,213,829.98/x - Step 3: Cross multiply
13,325,416.06x = 18,389,115.58 × 7,213,829.98 - Step 4: Simplify right side
13,325,416.06x = 132,655,953,276,689.08 - Step 5: Solve for x
x = 132,655,953,276,689.08/13,325,416.06 - Step 6: Final answer
x = 9,955,107.79
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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.