Finding the Fourth Proportional to 3,371,438,370.20, 5,057,157,555.30 and 1,432,489,659.80
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Solution
The fourth proportional to 3,371,438,370.20, 5,057,157,555.30 and 1,432,489,659.80 is: 2,148,734,489.70
Step by Step Solution
- Step 1: Write the proportion equation
3,371,438,370.20 : 5,057,157,555.30 = 1,432,489,659.80 : x - Step 2: Convert to fraction form
3,371,438,370.20/5,057,157,555.30 = 1,432,489,659.80/x - Step 3: Cross multiply
3,371,438,370.20x = 5,057,157,555.30 × 1,432,489,659.80 - Step 4: Simplify right side
3,371,438,370.20x = 7,244,325,905,946,696,704 - Step 5: Solve for x
x = 7,244,325,905,946,696,704/3,371,438,370.20 - Step 6: Final answer
x = 2,148,734,489.70
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1.5x scale
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.