Finding the Fourth Proportional to 7,182,804.29, 9,912,480.58 and 3,919,829.70
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Solution
The fourth proportional to 7,182,804.29, 9,912,480.58 and 3,919,829.70 is: 5,409,479.95
Step by Step Solution
- Step 1: Write the proportion equation
7,182,804.29 : 9,912,480.58 = 3,919,829.70 : x - Step 2: Convert to fraction form
7,182,804.29/9,912,480.58 = 3,919,829.70/x - Step 3: Cross multiply
7,182,804.29x = 9,912,480.58 × 3,919,829.70 - Step 4: Simplify right side
7,182,804.29x = 38,855,235,778,157.23 - Step 5: Solve for x
x = 38,855,235,778,157.23/7,182,804.29 - Step 6: Final answer
x = 5,409,479.95
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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.