Finding the Fourth Proportional to 122,787,102.23, 169,445,161.81 and 67,781,777.75
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Solution
The fourth proportional to 122,787,102.23, 169,445,161.81 and 67,781,777.75 is: 93,538,279.59
Step by Step Solution
- Step 1: Write the proportion equation
122,787,102.23 : 169,445,161.81 = 67,781,777.75 : x - Step 2: Convert to fraction form
122,787,102.23/169,445,161.81 = 67,781,777.75/x - Step 3: Cross multiply
122,787,102.23x = 169,445,161.81 × 67,781,777.75 - Step 4: Simplify right side
122,787,102.23x = 11,485,294,298,618,208 - Step 5: Solve for x
x = 11,485,294,298,618,208/122,787,102.23 - Step 6: Final answer
x = 93,538,279.59
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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.