Finding the Fourth Proportional to 9,121,439.97, 12,587,588.19 and 4,991,471.91
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Solution
The fourth proportional to 9,121,439.97, 12,587,588.19 and 4,991,471.91 is: 6,888,231.80
Step by Step Solution
- Step 1: Write the proportion equation
9,121,439.97 : 12,587,588.19 = 4,991,471.91 : x - Step 2: Convert to fraction form
9,121,439.97/12,587,588.19 = 4,991,471.91/x - Step 3: Cross multiply
9,121,439.97x = 12,587,588.19 × 4,991,471.91 - Step 4: Simplify right side
9,121,439.97x = 62,830,592,865,032.74 - Step 5: Solve for x
x = 62,830,592,865,032.74/9,121,439.97 - Step 6: Final answer
x = 6,888,231.80
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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.