Finding the Fourth Proportional to 12,621,178.29, 17,417,225.30 and 6,819,959.84
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Solution
The fourth proportional to 12,621,178.29, 17,417,225.30 and 6,819,959.84 is: 9,411,544.18
Step by Step Solution
- Step 1: Write the proportion equation
12,621,178.29 : 17,417,225.30 = 6,819,959.84 : x - Step 2: Convert to fraction form
12,621,178.29/17,417,225.30 = 6,819,959.84/x - Step 3: Cross multiply
12,621,178.29x = 17,417,225.30 × 6,819,959.84 - Step 4: Simplify right side
12,621,178.29x = 118,784,777,070,231.95 - Step 5: Solve for x
x = 118,784,777,070,231.95/12,621,178.29 - Step 6: Final answer
x = 9,411,544.18
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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.