Finding the Fourth Proportional to 2,787,609,939.84, 4,181,396,308.92 and 1,129,492,762.20
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Solution
The fourth proportional to 2,787,609,939.84, 4,181,396,308.92 and 1,129,492,762.20 is: 1,694,231,606.55
Step by Step Solution
- Step 1: Write the proportion equation
2,787,609,939.84 : 4,181,396,308.92 = 1,129,492,762.20 : x - Step 2: Convert to fraction form
2,787,609,939.84/4,181,396,308.92 = 1,129,492,762.20/x - Step 3: Cross multiply
2,787,609,939.84x = 4,181,396,308.92 × 1,129,492,762.20 - Step 4: Simplify right side
2,787,609,939.84x = 4,722,856,866,814,936,064 - Step 5: Solve for x
x = 4,722,856,866,814,936,064/2,787,609,939.84 - Step 6: Final answer
x = 1,694,231,606.55
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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.