Finding the Fourth Proportional to 12,686,922.14, 17,507,969.84 and 6,885,703.96
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Solution
The fourth proportional to 12,686,922.14, 17,507,969.84 and 6,885,703.96 is: 9,502,280.85
Step by Step Solution
- Step 1: Write the proportion equation
12,686,922.14 : 17,507,969.84 = 6,885,703.96 : x - Step 2: Convert to fraction form
12,686,922.14/17,507,969.84 = 6,885,703.96/x - Step 3: Cross multiply
12,686,922.14x = 17,507,969.84 × 6,885,703.96 - Step 4: Simplify right side
12,686,922.14x = 120,554,697,258,848.56 - Step 5: Solve for x
x = 120,554,697,258,848.56/12,686,922.14 - Step 6: Final answer
x = 9,502,280.85
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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.