Finding the Fourth Proportional to 8,877,905.16, 12,250,195.56 and 5,391,430.80
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Solution
The fourth proportional to 8,877,905.16, 12,250,195.56 and 5,391,430.80 is: 7,439,376.80
Step by Step Solution
- Step 1: Write the proportion equation
8,877,905.16 : 12,250,195.56 = 5,391,430.80 : x - Step 2: Convert to fraction form
8,877,905.16/12,250,195.56 = 5,391,430.80/x - Step 3: Cross multiply
8,877,905.16x = 12,250,195.56 × 5,391,430.80 - Step 4: Simplify right side
8,877,905.16x = 66,046,081,648,207.25 - Step 5: Solve for x
x = 66,046,081,648,207.25/8,877,905.16 - Step 6: Final answer
x = 7,439,376.80
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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.