Finding the Fourth Proportional to 25,987,681.36, 38,968,065.48 and 13,853,885.68
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Solution
The fourth proportional to 25,987,681.36, 38,968,065.48 and 13,853,885.68 is: 20,773,654.90
Step by Step Solution
- Step 1: Write the proportion equation
25,987,681.36 : 38,968,065.48 = 13,853,885.68 : x - Step 2: Convert to fraction form
25,987,681.36/38,968,065.48 = 13,853,885.68/x - Step 3: Cross multiply
25,987,681.36x = 38,968,065.48 × 13,853,885.68 - Step 4: Simplify right side
25,987,681.36x = 539,859,124,330,674.25 - Step 5: Solve for x
x = 539,859,124,330,674.25/25,987,681.36 - Step 6: Final answer
x = 20,773,654.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.