Finding the Fourth Proportional to 422,640,062.44, 633,964,974.51 and 127,537,739.08
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Solution
The fourth proportional to 422,640,062.44, 633,964,974.51 and 127,537,739.08 is: 191,308,081.48
Step by Step Solution
- Step 1: Write the proportion equation
422,640,062.44 : 633,964,974.51 = 127,537,739.08 : x - Step 2: Convert to fraction form
422,640,062.44/633,964,974.51 = 127,537,739.08/x - Step 3: Cross multiply
422,640,062.44x = 633,964,974.51 × 127,537,739.08 - Step 4: Simplify right side
422,640,062.44x = 80,854,459,501,745,408 - Step 5: Solve for x
x = 80,854,459,501,745,408/422,640,062.44 - Step 6: Final answer
x = 191,308,081.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.