Finding the Fourth Proportional to 11,219,783.28, 15,482,633.46 and 6,509,813.91
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Solution
The fourth proportional to 11,219,783.28, 15,482,633.46 and 6,509,813.91 is: 8,983,155.93
Step by Step Solution
- Step 1: Write the proportion equation
11,219,783.28 : 15,482,633.46 = 6,509,813.91 : x - Step 2: Convert to fraction form
11,219,783.28/15,482,633.46 = 6,509,813.91/x - Step 3: Cross multiply
11,219,783.28x = 15,482,633.46 × 6,509,813.91 - Step 4: Simplify right side
11,219,783.28x = 100,789,062,661,339.44 - Step 5: Solve for x
x = 100,789,062,661,339.44/11,219,783.28 - Step 6: Final answer
x = 8,983,155.93
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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.