Finding the Fourth Proportional to 745,580,779.97, 1,028,902,610.09 and 415,548,833.09
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Solution
The fourth proportional to 745,580,779.97, 1,028,902,610.09 and 415,548,833.09 is: 573,458,021.55
Step by Step Solution
- Step 1: Write the proportion equation
745,580,779.97 : 1,028,902,610.09 = 415,548,833.09 : x - Step 2: Convert to fraction form
745,580,779.97/1,028,902,610.09 = 415,548,833.09/x - Step 3: Cross multiply
745,580,779.97x = 1,028,902,610.09 × 415,548,833.09 - Step 4: Simplify right side
745,580,779.97x = 427,559,278,982,049,088 - Step 5: Solve for x
x = 427,559,278,982,049,088/745,580,779.97 - Step 6: Final answer
x = 573,458,021.55
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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.