Finding the Fourth Proportional to 90,830,920.80, 136,267,245.21 and 26,135,261.76
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Solution
The fourth proportional to 90,830,920.80, 136,267,245.21 and 26,135,261.76 is: 39,208,895.95
Step by Step Solution
- Step 1: Write the proportion equation
90,830,920.80 : 136,267,245.21 = 26,135,261.76 : x - Step 2: Convert to fraction form
90,830,920.80/136,267,245.21 = 26,135,261.76/x - Step 3: Cross multiply
90,830,920.80x = 136,267,245.21 × 26,135,261.76 - Step 4: Simplify right side
90,830,920.80x = 3,561,380,122,877,456.50 - Step 5: Solve for x
x = 3,561,380,122,877,456.50/90,830,920.80 - Step 6: Final answer
x = 39,208,895.95
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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.