Finding the Fourth Proportional to 7,202,209.98, 9,938,909.97 and 3,939,014.58
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Solution
The fourth proportional to 7,202,209.98, 9,938,909.97 and 3,939,014.58 is: 5,435,763.66
Step by Step Solution
- Step 1: Write the proportion equation
7,202,209.98 : 9,938,909.97 = 3,939,014.58 : x - Step 2: Convert to fraction form
7,202,209.98/9,938,909.97 = 3,939,014.58/x - Step 3: Cross multiply
7,202,209.98x = 9,938,909.97 × 3,939,014.58 - Step 4: Simplify right side
7,202,209.98x = 39,149,511,281,137.37 - Step 5: Solve for x
x = 39,149,511,281,137.37/7,202,209.98 - Step 6: Final answer
x = 5,435,763.66
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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.