Finding the Fourth Proportional to 13,539,383.84, 18,686,002.56 and 7,738,410.08
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Solution
The fourth proportional to 13,539,383.84, 18,686,002.56 and 7,738,410.08 is: 10,679,950.60
Step by Step Solution
- Step 1: Write the proportion equation
13,539,383.84 : 18,686,002.56 = 7,738,410.08 : x - Step 2: Convert to fraction form
13,539,383.84/18,686,002.56 = 7,738,410.08/x - Step 3: Cross multiply
13,539,383.84x = 18,686,002.56 × 7,738,410.08 - Step 4: Simplify right side
13,539,383.84x = 144,599,950,565,209.78 - Step 5: Solve for x
x = 144,599,950,565,209.78/13,539,383.84 - Step 6: Final answer
x = 10,679,950.60
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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.