Finding the Fourth Proportional to 13,210,765.12, 19,815,972.18 and 3,626,145.28
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Solution
The fourth proportional to 13,210,765.12, 19,815,972.18 and 3,626,145.28 is: 5,439,169.75
Step by Step Solution
- Step 1: Write the proportion equation
13,210,765.12 : 19,815,972.18 = 3,626,145.28 : x - Step 2: Convert to fraction form
13,210,765.12/19,815,972.18 = 3,626,145.28/x - Step 3: Cross multiply
13,210,765.12x = 19,815,972.18 × 3,626,145.28 - Step 4: Simplify right side
13,210,765.12x = 71,855,593,989,118.31 - Step 5: Solve for x
x = 71,855,593,989,118.31/13,210,765.12 - Step 6: Final answer
x = 5,439,169.75
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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.