Finding the Fourth Proportional to 122,474,846.90, 183,712,270.35 and 81,660,178.10
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Solution
The fourth proportional to 122,474,846.90, 183,712,270.35 and 81,660,178.10 is: 122,490,267.15
Step by Step Solution
- Step 1: Write the proportion equation
122,474,846.90 : 183,712,270.35 = 81,660,178.10 : x - Step 2: Convert to fraction form
122,474,846.90/183,712,270.35 = 81,660,178.10/x - Step 3: Cross multiply
122,474,846.90x = 183,712,270.35 × 81,660,178.10 - Step 4: Simplify right side
122,474,846.90x = 15,001,976,715,936,348 - Step 5: Solve for x
x = 15,001,976,715,936,348/122,474,846.90 - Step 6: Final answer
x = 122,490,267.15
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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.