Finding the Fourth Proportional to 11,319,721.79, 15,621,600.47 and 6,359,039.24
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Solution
The fourth proportional to 11,319,721.79, 15,621,600.47 and 6,359,039.24 is: 8,775,690.09
Step by Step Solution
- Step 1: Write the proportion equation
11,319,721.79 : 15,621,600.47 = 6,359,039.24 : x - Step 2: Convert to fraction form
11,319,721.79/15,621,600.47 = 6,359,039.24/x - Step 3: Cross multiply
11,319,721.79x = 15,621,600.47 × 6,359,039.24 - Step 4: Simplify right side
11,319,721.79x = 99,338,370,387,591.23 - Step 5: Solve for x
x = 99,338,370,387,591.23/11,319,721.79 - Step 6: Final answer
x = 8,775,690.09
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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.