Finding the Fourth Proportional to 1,346,618,982.76, 2,020,121,251.68 and 414,020,138.08
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Solution
The fourth proportional to 1,346,618,982.76, 2,020,121,251.68 and 414,020,138.08 is: 621,089,476.88
Step by Step Solution
- Step 1: Write the proportion equation
1,346,618,982.76 : 2,020,121,251.68 = 414,020,138.08 : x - Step 2: Convert to fraction form
1,346,618,982.76/2,020,121,251.68 = 414,020,138.08/x - Step 3: Cross multiply
1,346,618,982.76x = 2,020,121,251.68 × 414,020,138.08 - Step 4: Simplify right side
1,346,618,982.76x = 836,370,879,558,896,000 - Step 5: Solve for x
x = 836,370,879,558,896,000/1,346,618,982.76 - Step 6: Final answer
x = 621,089,476.88
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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.