Finding the Fourth Proportional to 207,917,633.24, 286,928,601.36 and 115,099,691.12
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Solution
The fourth proportional to 207,917,633.24, 286,928,601.36 and 115,099,691.12 is: 158,838,828.99
Step by Step Solution
- Step 1: Write the proportion equation
207,917,633.24 : 286,928,601.36 = 115,099,691.12 : x - Step 2: Convert to fraction form
207,917,633.24/286,928,601.36 = 115,099,691.12/x - Step 3: Cross multiply
207,917,633.24x = 286,928,601.36 × 115,099,691.12 - Step 4: Simplify right side
207,917,633.24x = 33,025,393,390,746,936 - Step 5: Solve for x
x = 33,025,393,390,746,936/207,917,633.24 - Step 6: Final answer
x = 158,838,828.99
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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.