Finding the Fourth Proportional to 7,340,829.84, 11,008,747.80 and 2,790,781.20
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Solution
The fourth proportional to 7,340,829.84, 11,008,747.80 and 2,790,781.20 is: 4,185,222.52
Step by Step Solution
- Step 1: Write the proportion equation
7,340,829.84 : 11,008,747.80 = 2,790,781.20 : x - Step 2: Convert to fraction form
7,340,829.84/11,008,747.80 = 2,790,781.20/x - Step 3: Cross multiply
7,340,829.84x = 11,008,747.80 × 2,790,781.20 - Step 4: Simplify right side
7,340,829.84x = 30,723,006,395,781.36 - Step 5: Solve for x
x = 30,723,006,395,781.36/7,340,829.84 - Step 6: Final answer
x = 4,185,222.52
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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.