Finding the Fourth Proportional to 7,716,661.36, 10,646,820.84 and 6,079,994.80
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Solution
The fourth proportional to 7,716,661.36, 10,646,820.84 and 6,079,994.80 is: 8,388,681.62
Step by Step Solution
- Step 1: Write the proportion equation
7,716,661.36 : 10,646,820.84 = 6,079,994.80 : x - Step 2: Convert to fraction form
7,716,661.36/10,646,820.84 = 6,079,994.80/x - Step 3: Cross multiply
7,716,661.36x = 10,646,820.84 × 6,079,994.80 - Step 4: Simplify right side
7,716,661.36x = 64,732,615,343,731.63 - Step 5: Solve for x
x = 64,732,615,343,731.63/7,716,661.36 - Step 6: Final answer
x = 8,388,681.62
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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.