Finding the Fourth Proportional to 31,869,691.30, 47,804,536.95 and 29,212,486.30
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Solution
The fourth proportional to 31,869,691.30, 47,804,536.95 and 29,212,486.30 is: 43,818,729.45
Step by Step Solution
- Step 1: Write the proportion equation
31,869,691.30 : 47,804,536.95 = 29,212,486.30 : x - Step 2: Convert to fraction form
31,869,691.30/47,804,536.95 = 29,212,486.30/x - Step 3: Cross multiply
31,869,691.30x = 47,804,536.95 × 29,212,486.30 - Step 4: Simplify right side
31,869,691.30x = 1,396,489,380,729,719 - Step 5: Solve for x
x = 1,396,489,380,729,719/31,869,691.30 - Step 6: Final answer
x = 43,818,729.45
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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.