Finding the Fourth Proportional to 3,919,328,460.80, 5,872,190,246.40 and 2,538,432,166.40
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Solution
The fourth proportional to 3,919,328,460.80, 5,872,190,246.40 and 2,538,432,166.40 is: 3,803,242,508.96
Step by Step Solution
- Step 1: Write the proportion equation
3,919,328,460.80 : 5,872,190,246.40 = 2,538,432,166.40 : x - Step 2: Convert to fraction form
3,919,328,460.80/5,872,190,246.40 = 2,538,432,166.40/x - Step 3: Cross multiply
3,919,328,460.80x = 5,872,190,246.40 × 2,538,432,166.40 - Step 4: Simplify right side
3,919,328,460.80x = 14,906,156,608,682,100,736 - Step 5: Solve for x
x = 14,906,156,608,682,100,736/3,919,328,460.80 - Step 6: Final answer
x = 3,803,242,508.96
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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.