Finding the Fourth Proportional to 7,005,417.99, 9,667,257.61 and 4,106,739.49
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Solution
The fourth proportional to 7,005,417.99, 9,667,257.61 and 4,106,739.49 is: 5,667,171.98
Step by Step Solution
- Step 1: Write the proportion equation
7,005,417.99 : 9,667,257.61 = 4,106,739.49 : x - Step 2: Convert to fraction form
7,005,417.99/9,667,257.61 = 4,106,739.49/x - Step 3: Cross multiply
7,005,417.99x = 9,667,257.61 × 4,106,739.49 - Step 4: Simplify right side
7,005,417.99x = 39,700,908,560,255.16 - Step 5: Solve for x
x = 39,700,908,560,255.16/7,005,417.99 - Step 6: Final answer
x = 5,667,171.98
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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.