Finding the Fourth Proportional to 124,659,922.29, 172,027,689.81 and 68,142,156.09
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Solution
The fourth proportional to 124,659,922.29, 172,027,689.81 and 68,142,156.09 is: 94,034,533.92
Step by Step Solution
- Step 1: Write the proportion equation
124,659,922.29 : 172,027,689.81 = 68,142,156.09 : x - Step 2: Convert to fraction form
124,659,922.29/172,027,689.81 = 68,142,156.09/x - Step 3: Cross multiply
124,659,922.29x = 172,027,689.81 × 68,142,156.09 - Step 4: Simplify right side
124,659,922.29x = 11,722,337,690,835,124 - Step 5: Solve for x
x = 11,722,337,690,835,124/124,659,922.29 - Step 6: Final answer
x = 94,034,533.92
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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.