Finding the Fourth Proportional to 39,957,779.16, 55,141,735.42 and 21,623,064.84
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Solution
The fourth proportional to 39,957,779.16, 55,141,735.42 and 21,623,064.84 is: 29,839,829.58
Step by Step Solution
- Step 1: Write the proportion equation
39,957,779.16 : 55,141,735.42 = 21,623,064.84 : x - Step 2: Convert to fraction form
39,957,779.16/55,141,735.42 = 21,623,064.84/x - Step 3: Cross multiply
39,957,779.16x = 55,141,735.42 × 21,623,064.84 - Step 4: Simplify right side
39,957,779.16x = 1,192,333,320,376,784.75 - Step 5: Solve for x
x = 1,192,333,320,376,784.75/39,957,779.16 - Step 6: Final answer
x = 29,839,829.58
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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.