Finding the Fourth Proportional to 21,252,150.08, 31,878,115.98 and 8,299,615.86
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Solution
The fourth proportional to 21,252,150.08, 31,878,115.98 and 8,299,615.86 is: 12,449,381.17
Step by Step Solution
- Step 1: Write the proportion equation
21,252,150.08 : 31,878,115.98 = 8,299,615.86 : x - Step 2: Convert to fraction form
21,252,150.08/31,878,115.98 = 8,299,615.86/x - Step 3: Cross multiply
21,252,150.08x = 31,878,115.98 × 8,299,615.86 - Step 4: Simplify right side
21,252,150.08x = 264,576,116,974,527.47 - Step 5: Solve for x
x = 264,576,116,974,527.47/21,252,150.08 - Step 6: Final answer
x = 12,449,381.17
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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.