Finding the Fourth Proportional to 7,409,217.40, 11,092,830.90 and 6,653,390.20
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Solution
The fourth proportional to 7,409,217.40, 11,092,830.90 and 6,653,390.20 is: 9,961,231.86
Step by Step Solution
- Step 1: Write the proportion equation
7,409,217.40 : 11,092,830.90 = 6,653,390.20 : x - Step 2: Convert to fraction form
7,409,217.40/11,092,830.90 = 6,653,390.20/x - Step 3: Cross multiply
7,409,217.40x = 11,092,830.90 × 6,653,390.20 - Step 4: Simplify right side
7,409,217.40x = 73,804,932,400,317.19 - Step 5: Solve for x
x = 73,804,932,400,317.19/7,409,217.40 - Step 6: Final answer
x = 9,961,231.86
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.