Finding the Fourth Proportional to 172,431,417.08, 238,266,620.17 and 122,785,600.06
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Solution
The fourth proportional to 172,431,417.08, 238,266,620.17 and 122,785,600.06 is: 169,665,774.53
Step by Step Solution
- Step 1: Write the proportion equation
172,431,417.08 : 238,266,620.17 = 122,785,600.06 : x - Step 2: Convert to fraction form
172,431,417.08/238,266,620.17 = 122,785,600.06/x - Step 3: Cross multiply
172,431,417.08x = 238,266,620.17 × 122,785,600.06 - Step 4: Simplify right side
172,431,417.08x = 29,255,709,931,505,532 - Step 5: Solve for x
x = 29,255,709,931,505,532/172,431,417.08 - Step 6: Final answer
x = 169,665,774.53
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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.