Finding the Fourth Proportional to 1,339,622,034.21, 1,848,909,801.99 and 775,418,001.49
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Solution
The fourth proportional to 1,339,622,034.21, 1,848,909,801.99 and 775,418,001.49 is: 1,070,210,781.08
Step by Step Solution
- Step 1: Write the proportion equation
1,339,622,034.21 : 1,848,909,801.99 = 775,418,001.49 : x - Step 2: Convert to fraction form
1,339,622,034.21/1,848,909,801.99 = 775,418,001.49/x - Step 3: Cross multiply
1,339,622,034.21x = 1,848,909,801.99 × 775,418,001.49 - Step 4: Simplify right side
1,339,622,034.21x = 1,433,677,943,587,847,168 - Step 5: Solve for x
x = 1,433,677,943,587,847,168/1,339,622,034.21 - Step 6: Final answer
x = 1,070,210,781.08
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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.