Finding the Fourth Proportional to 7,224,461.90, 9,969,374.40 and 4,126,376.88
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Solution
The fourth proportional to 7,224,461.90, 9,969,374.40 and 4,126,376.88 is: 5,694,181.32
Step by Step Solution
- Step 1: Write the proportion equation
7,224,461.90 : 9,969,374.40 = 4,126,376.88 : x - Step 2: Convert to fraction form
7,224,461.90/9,969,374.40 = 4,126,376.88/x - Step 3: Cross multiply
7,224,461.90x = 9,969,374.40 × 4,126,376.88 - Step 4: Simplify right side
7,224,461.90x = 41,137,396,032,223.88 - Step 5: Solve for x
x = 41,137,396,032,223.88/7,224,461.90 - Step 6: Final answer
x = 5,694,181.32
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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.