Finding the Fourth Proportional to 7,887,138.59, 10,884,357.01 and 4,449,368.99
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Solution
The fourth proportional to 7,887,138.59, 10,884,357.01 and 4,449,368.99 is: 6,140,188.87
Step by Step Solution
- Step 1: Write the proportion equation
7,887,138.59 : 10,884,357.01 = 4,449,368.99 : x - Step 2: Convert to fraction form
7,887,138.59/10,884,357.01 = 4,449,368.99/x - Step 3: Cross multiply
7,887,138.59x = 10,884,357.01 × 4,449,368.99 - Step 4: Simplify right side
7,887,138.59x = 48,428,520,589,155.72 - Step 5: Solve for x
x = 48,428,520,589,155.72/7,887,138.59 - Step 6: Final answer
x = 6,140,188.87
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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.