Finding the Fourth Proportional to 3,768,972.40, 5,655,208.20 and 1,973,882.80
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Solution
The fourth proportional to 3,768,972.40, 5,655,208.20 and 1,973,882.80 is: 2,961,740.50
Step by Step Solution
- Step 1: Write the proportion equation
3,768,972.40 : 5,655,208.20 = 1,973,882.80 : x - Step 2: Convert to fraction form
3,768,972.40/5,655,208.20 = 1,973,882.80/x - Step 3: Cross multiply
3,768,972.40x = 5,655,208.20 × 1,973,882.80 - Step 4: Simplify right side
3,768,972.40x = 11,162,718,196,398.96 - Step 5: Solve for x
x = 11,162,718,196,398.96/3,768,972.40 - Step 6: Final answer
x = 2,961,740.50
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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.