Finding the Fourth Proportional to 13,239,982.74, 18,271,394.70 and 7,279,641.36
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Solution
The fourth proportional to 13,239,982.74, 18,271,394.70 and 7,279,641.36 is: 10,046,025.22
Step by Step Solution
- Step 1: Write the proportion equation
13,239,982.74 : 18,271,394.70 = 7,279,641.36 : x - Step 2: Convert to fraction form
13,239,982.74/18,271,394.70 = 7,279,641.36/x - Step 3: Cross multiply
13,239,982.74x = 18,271,394.70 × 7,279,641.36 - Step 4: Simplify right side
13,239,982.74x = 133,009,200,563,004.80 - Step 5: Solve for x
x = 133,009,200,563,004.80/13,239,982.74 - Step 6: Final answer
x = 10,046,025.22
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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.