Finding the Fourth Proportional to 13,126,964.60, 18,115,501.40 and 7,246,585.19
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Solution
The fourth proportional to 13,126,964.60, 18,115,501.40 and 7,246,585.19 is: 10,000,447.79
Step by Step Solution
- Step 1: Write the proportion equation
13,126,964.60 : 18,115,501.40 = 7,246,585.19 : x - Step 2: Convert to fraction form
13,126,964.60/18,115,501.40 = 7,246,585.19/x - Step 3: Cross multiply
13,126,964.60x = 18,115,501.40 × 7,246,585.19 - Step 4: Simplify right side
13,126,964.60x = 131,275,524,154,664.27 - Step 5: Solve for x
x = 131,275,524,154,664.27/13,126,964.60 - Step 6: Final answer
x = 10,000,447.79
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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.