Finding the Fourth Proportional to 2,638,129,723,475.40, 3,954,928,198,055.80 and 916,854,432,231.98
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Solution
The fourth proportional to 2,638,129,723,475.40, 3,954,928,198,055.80 and 916,854,432,231.98 is: 1,374,493,989,162.06
Step by Step Solution
- Step 1: Write the proportion equation
2,638,129,723,475.40 : 3,954,928,198,055.80 = 916,854,432,231.98 : x - Step 2: Convert to fraction form
2,638,129,723,475.40/3,954,928,198,055.80 = 916,854,432,231.98/x - Step 3: Cross multiply
2,638,129,723,475.40x = 3,954,928,198,055.80 × 916,854,432,231.98 - Step 4: Simplify right side
2,638,129,723,475.40x = 3,626,093,447,546,698,129,735,680 - Step 5: Solve for x
x = 3,626,093,447,546,698,129,735,680/2,638,129,723,475.40 - Step 6: Final answer
x = 1,374,493,989,162.06
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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.