Finding the Fourth Proportional to 12,686,922, 17,507,969.68 and 6,885,703.84
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Solution
The fourth proportional to 12,686,922, 17,507,969.68 and 6,885,703.84 is: 9,502,280.70
Step by Step Solution
- Step 1: Write the proportion equation
12,686,922 : 17,507,969.68 = 6,885,703.84 : x - Step 2: Convert to fraction form
12,686,922/17,507,969.68 = 6,885,703.84/x - Step 3: Cross multiply
12,686,922x = 17,507,969.68 × 6,885,703.84 - Step 4: Simplify right side
12,686,922x = 120,554,694,056,179.56 - Step 5: Solve for x
x = 120,554,694,056,179.56/12,686,922 - Step 6: Final answer
x = 9,502,280.70
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1.5x scale
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.