Finding the Fourth Proportional to 12,791,748.84, 17,652,621.30 and 6,990,530.52
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Solution
The fourth proportional to 12,791,748.84, 17,652,621.30 and 6,990,530.52 is: 9,646,936.44
Step by Step Solution
- Step 1: Write the proportion equation
12,791,748.84 : 17,652,621.30 = 6,990,530.52 : x - Step 2: Convert to fraction form
12,791,748.84/17,652,621.30 = 6,990,530.52/x - Step 3: Cross multiply
12,791,748.84x = 17,652,621.30 × 6,990,530.52 - Step 4: Simplify right side
12,791,748.84x = 123,401,187,955,652.08 - Step 5: Solve for x
x = 123,401,187,955,652.08/12,791,748.84 - Step 6: Final answer
x = 9,646,936.44
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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.