Finding the Fourth Proportional to 122,161,828.48, 168,586,539.84 and 67,159,070.08
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Solution
The fourth proportional to 122,161,828.48, 168,586,539.84 and 67,159,070.08 is: 92,681,285.02
Step by Step Solution
- Step 1: Write the proportion equation
122,161,828.48 : 168,586,539.84 = 67,159,070.08 : x - Step 2: Convert to fraction form
122,161,828.48/168,586,539.84 = 67,159,070.08/x - Step 3: Cross multiply
122,161,828.48x = 168,586,539.84 × 67,159,070.08 - Step 4: Simplify right side
122,161,828.48x = 11,322,115,243,659,272 - Step 5: Solve for x
x = 11,322,115,243,659,272/122,161,828.48 - Step 6: Final answer
x = 92,681,285.02
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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.