Finding the Fourth Proportional to 13,165,133.68, 18,171,746.76 and 7,659,803.44
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Solution
The fourth proportional to 13,165,133.68, 18,171,746.76 and 7,659,803.44 is: 10,572,775.92
Step by Step Solution
- Step 1: Write the proportion equation
13,165,133.68 : 18,171,746.76 = 7,659,803.44 : x - Step 2: Convert to fraction form
13,165,133.68/18,171,746.76 = 7,659,803.44/x - Step 3: Cross multiply
13,165,133.68x = 18,171,746.76 × 7,659,803.44 - Step 4: Simplify right side
13,165,133.68x = 139,192,008,343,056.88 - Step 5: Solve for x
x = 139,192,008,343,056.88/13,165,133.68 - Step 6: Final answer
x = 10,572,775.92
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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.