Finding the Fourth Proportional to 15,271,922.65, 21,075,668.99 and 8,303,069.11
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Solution
The fourth proportional to 15,271,922.65, 21,075,668.99 and 8,303,069.11 is: 11,458,461.40
Step by Step Solution
- Step 1: Write the proportion equation
15,271,922.65 : 21,075,668.99 = 8,303,069.11 : x - Step 2: Convert to fraction form
15,271,922.65/21,075,668.99 = 8,303,069.11/x - Step 3: Cross multiply
15,271,922.65x = 21,075,668.99 × 8,303,069.11 - Step 4: Simplify right side
15,271,922.65x = 174,992,736,163,453.91 - Step 5: Solve for x
x = 174,992,736,163,453.91/15,271,922.65 - Step 6: Final answer
x = 11,458,461.40
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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.