Finding the Fourth Proportional to 4,984,740.12, 7,477,170.14 and 1,390,288.20
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Solution
The fourth proportional to 4,984,740.12, 7,477,170.14 and 1,390,288.20 is: 2,085,449.02
Step by Step Solution
- Step 1: Write the proportion equation
4,984,740.12 : 7,477,170.14 = 1,390,288.20 : x - Step 2: Convert to fraction form
4,984,740.12/7,477,170.14 = 1,390,288.20/x - Step 3: Cross multiply
4,984,740.12x = 7,477,170.14 × 1,390,288.20 - Step 4: Simplify right side
4,984,740.12x = 10,395,421,415,034.35 - Step 5: Solve for x
x = 10,395,421,415,034.35/4,984,740.12 - Step 6: Final answer
x = 2,085,449.02
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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.