Finding the Fourth Proportional to 7,776,605.10, 11,644,495.65 and 5,489,780.70
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Solution
The fourth proportional to 7,776,605.10, 11,644,495.65 and 5,489,780.70 is: 8,220,261.50
Step by Step Solution
- Step 1: Write the proportion equation
7,776,605.10 : 11,644,495.65 = 5,489,780.70 : x - Step 2: Convert to fraction form
7,776,605.10/11,644,495.65 = 5,489,780.70/x - Step 3: Cross multiply
7,776,605.10x = 11,644,495.65 × 5,489,780.70 - Step 4: Simplify right side
7,776,605.10x = 63,925,727,480,603.96 - Step 5: Solve for x
x = 63,925,727,480,603.96/7,776,605.10 - Step 6: Final answer
x = 8,220,261.50
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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.