Finding the Fourth Proportional to 7,887,729,424.22, 11,832,321,477.66 and 2,575,869,420.75
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Solution
The fourth proportional to 7,887,729,424.22, 11,832,321,477.66 and 2,575,869,420.75 is: 3,864,041,656.55
Step by Step Solution
- Step 1: Write the proportion equation
7,887,729,424.22 : 11,832,321,477.66 = 2,575,869,420.75 : x - Step 2: Convert to fraction form
7,887,729,424.22/11,832,321,477.66 = 2,575,869,420.75/x - Step 3: Cross multiply
7,887,729,424.22x = 11,832,321,477.66 × 2,575,869,420.75 - Step 4: Simplify right side
7,887,729,424.22x = 30,478,515,070,787,846,144 - Step 5: Solve for x
x = 30,478,515,070,787,846,144/7,887,729,424.22 - Step 6: Final answer
x = 3,864,041,656.55
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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.