Finding the Fourth Proportional to 125,108,664.09, 172,649,952.71 and 69,353,943.21
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Solution
The fourth proportional to 125,108,664.09, 172,649,952.71 and 69,353,943.21 is: 95,708,439.56
Step by Step Solution
- Step 1: Write the proportion equation
125,108,664.09 : 172,649,952.71 = 69,353,943.21 : x - Step 2: Convert to fraction form
125,108,664.09/172,649,952.71 = 69,353,943.21/x - Step 3: Cross multiply
125,108,664.09x = 172,649,952.71 × 69,353,943.21 - Step 4: Simplify right side
125,108,664.09x = 11,973,955,015,111,756 - Step 5: Solve for x
x = 11,973,955,015,111,756/125,108,664.09 - Step 6: Final answer
x = 95,708,439.56
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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.