Finding the Fourth Proportional to 12,718,216.62, 17,550,806.28 and 7,420,924.65
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Solution
The fourth proportional to 12,718,216.62, 17,550,806.28 and 7,420,924.65 is: 10,240,681.92
Step by Step Solution
- Step 1: Write the proportion equation
12,718,216.62 : 17,550,806.28 = 7,420,924.65 : x - Step 2: Convert to fraction form
12,718,216.62/17,550,806.28 = 7,420,924.65/x - Step 3: Cross multiply
12,718,216.62x = 17,550,806.28 × 7,420,924.65 - Step 4: Simplify right side
12,718,216.62x = 130,243,210,950,626.81 - Step 5: Solve for x
x = 130,243,210,950,626.81/12,718,216.62 - Step 6: Final answer
x = 10,240,681.92
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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.