Finding the Fourth Proportional to 14,987,857.12, 20,682,088.37 and 8,462,130.70
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Solution
The fourth proportional to 14,987,857.12, 20,682,088.37 and 8,462,130.70 is: 11,677,088.56
Step by Step Solution
- Step 1: Write the proportion equation
14,987,857.12 : 20,682,088.37 = 8,462,130.70 : x - Step 2: Convert to fraction form
14,987,857.12/20,682,088.37 = 8,462,130.70/x - Step 3: Cross multiply
14,987,857.12x = 20,682,088.37 × 8,462,130.70 - Step 4: Simplify right side
14,987,857.12x = 175,014,534,959,985.47 - Step 5: Solve for x
x = 175,014,534,959,985.47/14,987,857.12 - Step 6: Final answer
x = 11,677,088.56
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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.