Finding the Fourth Proportional to 15,075,789.63, 20,808,285.24 and 8,553,237.09
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Solution
The fourth proportional to 15,075,789.63, 20,808,285.24 and 8,553,237.09 is: 11,805,563.85
Step by Step Solution
- Step 1: Write the proportion equation
15,075,789.63 : 20,808,285.24 = 8,553,237.09 : x - Step 2: Convert to fraction form
15,075,789.63/20,808,285.24 = 8,553,237.09/x - Step 3: Cross multiply
15,075,789.63x = 20,808,285.24 × 8,553,237.09 - Step 4: Simplify right side
15,075,789.63x = 177,978,197,094,067.53 - Step 5: Solve for x
x = 177,978,197,094,067.53/15,075,789.63 - Step 6: Final answer
x = 11,805,563.85
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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.