Finding the Fourth Proportional to 165,858,917.18, 228,968,169.47 and 103,155,226.95
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Solution
The fourth proportional to 165,858,917.18, 228,968,169.47 and 103,155,226.95 is: 142,405,749.94
Step by Step Solution
- Step 1: Write the proportion equation
165,858,917.18 : 228,968,169.47 = 103,155,226.95 : x - Step 2: Convert to fraction form
165,858,917.18/228,968,169.47 = 103,155,226.95/x - Step 3: Cross multiply
165,858,917.18x = 228,968,169.47 × 103,155,226.95 - Step 4: Simplify right side
165,858,917.18x = 23,619,263,486,003,912 - Step 5: Solve for x
x = 23,619,263,486,003,912/165,858,917.18 - Step 6: Final answer
x = 142,405,749.94
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.