Finding the Fourth Proportional to 286,916,726.88, 395,874,828.50 and 161,444,458.13
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Solution
The fourth proportional to 286,916,726.88, 395,874,828.50 and 161,444,458.13 is: 222,753,820.83
Step by Step Solution
- Step 1: Write the proportion equation
286,916,726.88 : 395,874,828.50 = 161,444,458.13 : x - Step 2: Convert to fraction form
286,916,726.88/395,874,828.50 = 161,444,458.13/x - Step 3: Cross multiply
286,916,726.88x = 395,874,828.50 × 161,444,458.13 - Step 4: Simplify right side
286,916,726.88x = 63,911,797,171,702,584 - Step 5: Solve for x
x = 63,911,797,171,702,584/286,916,726.88 - Step 6: Final answer
x = 222,753,820.83
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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.