Finding the Fourth Proportional to 165,887,998.20, 248,831,997.30 and 149,166,487.80
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Solution
The fourth proportional to 165,887,998.20, 248,831,997.30 and 149,166,487.80 is: 223,749,731.70
Step by Step Solution
- Step 1: Write the proportion equation
165,887,998.20 : 248,831,997.30 = 149,166,487.80 : x - Step 2: Convert to fraction form
165,887,998.20/248,831,997.30 = 149,166,487.80/x - Step 3: Cross multiply
165,887,998.20x = 248,831,997.30 × 149,166,487.80 - Step 4: Simplify right side
165,887,998.20x = 37,117,395,089,500,088 - Step 5: Solve for x
x = 37,117,395,089,500,088/165,887,998.20 - Step 6: Final answer
x = 223,749,731.70
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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.