Finding the Fourth Proportional to 401,326,305.92, 601,845,116.16 and 138,939,610.40
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Solution
The fourth proportional to 401,326,305.92, 601,845,116.16 and 138,939,610.40 is: 208,359,443.99
Step by Step Solution
- Step 1: Write the proportion equation
401,326,305.92 : 601,845,116.16 = 138,939,610.40 : x - Step 2: Convert to fraction form
401,326,305.92/601,845,116.16 = 138,939,610.40/x - Step 3: Cross multiply
401,326,305.92x = 601,845,116.16 × 138,939,610.40 - Step 4: Simplify right side
401,326,305.92x = 83,620,125,960,413,136 - Step 5: Solve for x
x = 83,620,125,960,413,136/401,326,305.92 - Step 6: Final answer
x = 208,359,443.99
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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.