Finding the Fourth Proportional to 11,319,721.55, 15,621,600.12 and 6,359,039.00
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Solution
The fourth proportional to 11,319,721.55, 15,621,600.12 and 6,359,039.00 is: 8,775,689.75
Step by Step Solution
- Step 1: Write the proportion equation
11,319,721.55 : 15,621,600.12 = 6,359,039.00 : x - Step 2: Convert to fraction form
11,319,721.55/15,621,600.12 = 6,359,039.00/x - Step 3: Cross multiply
11,319,721.55x = 15,621,600.12 × 6,359,039.00 - Step 4: Simplify right side
11,319,721.55x = 99,338,364,327,376.67 - Step 5: Solve for x
x = 99,338,364,327,376.67/11,319,721.55 - Step 6: Final answer
x = 8,775,689.75
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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.