Finding the Fourth Proportional to 207,917,640.18, 286,928,610.93 and 115,099,698.06
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Solution
The fourth proportional to 207,917,640.18, 286,928,610.93 and 115,099,698.06 is: 158,838,838.56
Step by Step Solution
- Step 1: Write the proportion equation
207,917,640.18 : 286,928,610.93 = 115,099,698.06 : x - Step 2: Convert to fraction form
207,917,640.18/286,928,610.93 = 115,099,698.06/x - Step 3: Cross multiply
207,917,640.18x = 286,928,610.93 × 115,099,698.06 - Step 4: Simplify right side
207,917,640.18x = 33,025,396,482,818,216 - Step 5: Solve for x
x = 33,025,396,482,818,216/207,917,640.18 - Step 6: Final answer
x = 158,838,838.56
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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.