Finding the Fourth Proportional to 16,321,681.13, 22,523,919.98 and 8,979,357.15
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Solution
The fourth proportional to 16,321,681.13, 22,523,919.98 and 8,979,357.15 is: 12,391,512.88
Step by Step Solution
- Step 1: Write the proportion equation
16,321,681.13 : 22,523,919.98 = 8,979,357.15 : x - Step 2: Convert to fraction form
16,321,681.13/22,523,919.98 = 8,979,357.15/x - Step 3: Cross multiply
16,321,681.13x = 22,523,919.98 × 8,979,357.15 - Step 4: Simplify right side
16,321,681.13x = 202,250,321,873,544.09 - Step 5: Solve for x
x = 202,250,321,873,544.09/16,321,681.13 - Step 6: Final answer
x = 12,391,512.88
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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.