Finding the Fourth Proportional to 809,208,757.63, 1,116,708,071.98 and 437,930,789.00
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Solution
The fourth proportional to 809,208,757.63, 1,116,708,071.98 and 437,930,789.00 is: 604,344,481.49
Step by Step Solution
- Step 1: Write the proportion equation
809,208,757.63 : 1,116,708,071.98 = 437,930,789.00 : x - Step 2: Convert to fraction form
809,208,757.63/1,116,708,071.98 = 437,930,789.00/x - Step 3: Cross multiply
809,208,757.63x = 1,116,708,071.98 × 437,930,789.00 - Step 4: Simplify right side
809,208,757.63x = 489,040,847,046,537,152 - Step 5: Solve for x
x = 489,040,847,046,537,152/809,208,757.63 - Step 6: Final answer
x = 604,344,481.49
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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.