Finding the Fourth Proportional to 121,461,812.12, 167,592,535.57 and 71,877,369.91
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Solution
The fourth proportional to 121,461,812.12, 167,592,535.57 and 71,877,369.91 is: 99,176,115.22
Step by Step Solution
- Step 1: Write the proportion equation
121,461,812.12 : 167,592,535.57 = 71,877,369.91 : x - Step 2: Convert to fraction form
121,461,812.12/167,592,535.57 = 71,877,369.91/x - Step 3: Cross multiply
121,461,812.12x = 167,592,535.57 × 71,877,369.91 - Step 4: Simplify right side
121,461,812.12x = 12,046,110,673,319,722 - Step 5: Solve for x
x = 12,046,110,673,319,722/121,461,812.12 - Step 6: Final answer
x = 99,176,115.22
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.