Finding the Fourth Proportional to 122,440,131.63, 168,967,381.71 and 67,435,988.13
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Solution
The fourth proportional to 122,440,131.63, 168,967,381.71 and 67,435,988.13 is: 93,061,663.65
Step by Step Solution
- Step 1: Write the proportion equation
122,440,131.63 : 168,967,381.71 = 67,435,988.13 : x - Step 2: Convert to fraction form
122,440,131.63/168,967,381.71 = 67,435,988.13/x - Step 3: Cross multiply
122,440,131.63x = 168,967,381.71 × 67,435,988.13 - Step 4: Simplify right side
122,440,131.63x = 11,394,482,347,352,738 - Step 5: Solve for x
x = 11,394,482,347,352,738/122,440,131.63 - Step 6: Final answer
x = 93,061,663.65
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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.