Finding the Fourth Proportional to 12,968,867.98, 17,899,215.03 and 8,780,653.62
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Solution
The fourth proportional to 12,968,867.98, 17,899,215.03 and 8,780,653.62 is: 12,118,776.09
Step by Step Solution
- Step 1: Write the proportion equation
12,968,867.98 : 17,899,215.03 = 8,780,653.62 : x - Step 2: Convert to fraction form
12,968,867.98/17,899,215.03 = 8,780,653.62/x - Step 3: Cross multiply
12,968,867.98x = 17,899,215.03 × 8,780,653.62 - Step 4: Simplify right side
12,968,867.98x = 157,166,807,248,327.91 - Step 5: Solve for x
x = 157,166,807,248,327.91/12,968,867.98 - Step 6: Final answer
x = 12,118,776.09
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1.5x scale
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.