Finding the Fourth Proportional to 12,149,962.84, 16,771,167.74 and 6,995,378.80
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Solution
The fourth proportional to 12,149,962.84, 16,771,167.74 and 6,995,378.80 is: 9,656,051.86
Step by Step Solution
- Step 1: Write the proportion equation
12,149,962.84 : 16,771,167.74 = 6,995,378.80 : x - Step 2: Convert to fraction form
12,149,962.84/16,771,167.74 = 6,995,378.80/x - Step 3: Cross multiply
12,149,962.84x = 16,771,167.74 × 6,995,378.80 - Step 4: Simplify right side
12,149,962.84x = 117,320,671,259,639.91 - Step 5: Solve for x
x = 117,320,671,259,639.91/12,149,962.84 - Step 6: Final answer
x = 9,656,051.86
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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.