Finding the Fourth Proportional to 56,747,449.36, 85,133,143.64 and 18,405,985.68
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Solution
The fourth proportional to 56,747,449.36, 85,133,143.64 and 18,405,985.68 is: 27,612,860.85
Step by Step Solution
- Step 1: Write the proportion equation
56,747,449.36 : 85,133,143.64 = 18,405,985.68 : x - Step 2: Convert to fraction form
56,747,449.36/85,133,143.64 = 18,405,985.68/x - Step 3: Cross multiply
56,747,449.36x = 85,133,143.64 × 18,405,985.68 - Step 4: Simplify right side
56,747,449.36x = 1,566,959,422,731,223 - Step 5: Solve for x
x = 1,566,959,422,731,223/56,747,449.36 - Step 6: Final answer
x = 27,612,860.85
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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.