Finding the Fourth Proportional to 317,479,491.80, 438,106,890.84 and 176,359,859
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Solution
The fourth proportional to 317,479,491.80, 438,106,890.84 and 176,359,859 is: 243,368,379.66
Step by Step Solution
- Step 1: Write the proportion equation
317,479,491.80 : 438,106,890.84 = 176,359,859 : x - Step 2: Convert to fraction form
317,479,491.80/438,106,890.84 = 176,359,859/x - Step 3: Cross multiply
317,479,491.80x = 438,106,890.84 × 176,359,859 - Step 4: Simplify right side
317,479,491.80x = 77,264,469,495,470,784 - Step 5: Solve for x
x = 77,264,469,495,470,784/317,479,491.80 - Step 6: Final answer
x = 243,368,379.66
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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.